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Opinion polling for the 2019 Portuguese legislative election

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In the run up to the 2019 Portuguese legislative election (to be held on 6 October 2019), various organisations carry out opinion polling to gauge voting intention in Portugal. Results of such polls are displayed in this article.

The date range for these opinion polls are from the previous legislative election, held on 4 October 2015, to the present day.

Nationwide polling

Graphical summary

Graph showing a 30-day average trendline of Portuguese opinion polls from the election in 2015 to the election in 2019. Each line corresponds to a political party.

Polling

For the events during these years, see 2015 in Portugal, 2016 in Portugal, 2017 in Portugal, 2018 in Portugal, and 2019 in Portugal.

Poll results are listed in the table below in reverse chronological order, showing the most recent first. The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading party's colour. In the instance that there is a tie, then no figure is shaded but both are displayed in bold. The lead column on the right shows the percentage-point difference between the two parties with the highest figures. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication.

  Exit poll

Polling firm/Link Fieldwork date Sample size Turnout PSD PS BE CDS–PP CDU PAN L IL A CH O Lead
class="unsortable" style="background:Template:Social Democratic Party (Portugal)/meta/color;"| class="unsortable" style="background:Template:Socialist Party (Portugal)/meta/color;"| class="unsortable" style="background:Template:Left Bloc/meta/color;"| class="unsortable" style="background:Template:CDS – People's Party/meta/color;"| class="unsortable" style="background:Template:Unitary Democratic Coalition/meta/color;"| class="unsortable" style="background:Template:People–Animals–Nature/meta/color;"|
2019 Legislative Election 6 Oct 2019 — 48.6 27.8
79 		36.4
108 		9.5
19 		4.2
5 		6.3
12 		3.3
4 		1.1
1 		1.3
1 		0.8
0 		1.3
1 		8.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"|8.6
UCP–CESOP 6 Oct 2019 20,532 51–56 27.0–
31.0
74/82 		34.0–
39.0
104/112 		9.0–
12.0
19/23 		3.0–
5.0
4/6 		6.0–
8.0
9/14 		3.0–
5.0
4/6 		1.0–
2.0
1 		1.0–
2.0
1/2 		0.0–
1.0
0/1 		1.0–
2.0
0/1 		– style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.0–
8.0
ICS/ISCTE 6 Oct 2019 1,814 49–52 24.2–
28.2
72/82 		36.0–
40.0
105/117 		8.9–
11.9
17/24 		2.4–
5.0
2/8 		4.7–
7.3
5/13 		2.5–
4.5
2/6 		0.5–
2.5
1/2 		0.6–
2.6
1/3 		– 0.4–
2.4
0/1 		– style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.8
Intercampus 6 Oct 2019 22,303 52–56 24.0–
30.0
75/85 		33.0–
39.0
102/114 		7.0–
11.0
16/22 		2.0–
5.0
3/7 		4.0–
8.0
8/14 		2.0–
5.0
4/8 		?
1 		?
2 		– ?
1 		– style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.0
Pitagórica 6 Oct 2019 26,422 61–65 24.6–
28.6
68/78 		34.5–
38.5
100/112 		7.7–
11.7
20/26 		2.9–
4.9
3/7 		6.0–
8.0
10/14 		2.7–
4.7
3/5 		0.1–
2.1
0/1 		0.9–
2.9
0/2 		– 0.6–
2.6
0/1 		– style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.9
Pitagórica[a] 30 Sep–3 Oct 2019 600 ? 27.8 37.2 9.2 4.6 6.6 4.8 0.9 0.9 1.1 1.8 5.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.4
Aximage 26 Sep–2 Oct 2019 2,171 ? 26.8
72 		36.5
102 		10.7
25 		4.9
9 		6.6
14 		3.8
6 		1.3
1 		1.1
0 		– 1.3
1 		7.0
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.7
Pitagórica 17 Sep–2 Oct 2019 2,400 ? 28.8
79/83 		37.3
101/104 		9.2
17/20 		3.9
7/10 		6.6
9/12 		4.4
4/5 		0.9
0/1 		0.9
0/1 		1.5
0 		1.5
0 		5.0
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.5
Pitagórica[a] 28 Sep–1 Oct 2019 600 ? 28.5 37.4 8.9 4.0 7.4 3.8 0.8 0.4 1.1 1.5 6.2 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.9
Intercampus 26 Sep–1 Oct 2019 1,000 ? 26.1
77 		35.0
104 		8.7
17 		4.5
7 		8.0
16 		5.6
9 		– – – – 12.1
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.9
Eurosondagem 25 Sep–1 Oct 2019 2,071 ? 25.5
68/76 		38.8
109/117 		9.6
17/19 		5.0
6/8 		7.1
13/14 		4.0
5/6 		– – – – 10.0
0/2 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.3
Pitagórica[a] 27–30 Sep 2019 600 ? 28.6 35.6 9.5 4.2 7.8 2.9 1.5 1.1 1.1 1.3 6.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.0
UCP–CESOP 26–29 Sep 2019 3,226 ? 30
79/87 		37
97/107 		10
18/24 		5
7/11 		6
8/13 		3
2/4 		1
0/1 		1
0/1 		1
0 		1
0 		6
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7
Pitagórica[a] 26–29 Sep 2019 600 ? 28.9 35.3 9.1 4.5 7.8 3.2 1.5 1.3 0.6 1.1 6.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.4
ICS/ISCTE 23–29 Sep 2019 1,330 ? 28
73/83 		38
104/114 		10
16/24 		5
5/10 		6
9/15 		3
2/5 		0.5
0 		0.2
0 		0.3
0 		0.4
0 		7
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10
Pitagórica[a] 25–28 Sep 2019 600 ? 27.7 37.7 10.0 4.4 6.3 3.1 1.3 1.1 0.7 1.1 6.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.0
Pitagórica[a] 24–27 Sep 2019 600 ? 26.4 37.1 10.4 3.6 6.4 3.1 1.3 2.0 0.7 1.1 7.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.7
Pitagórica[a] 23–26 Sep 2019 600 ? 26.6 37.8 10.1 4.0 5.1 3.6 1.1 1.6 0.7 1.1 8.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.2
Pitagórica[a] 22–25 Sep 2019 600 ? 26.8 38.3 10.6 4.4 5.3 3.3 1.1 1.3 0.7 0.7 7.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.5
Aximage 21–25 Sep 2019 ? ? 25.2 37.4 11.0 5.1 6.8 3.6 1.6 1.2 – 1.5 6.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.2
Pitagórica[a] 21–24 Sep 2019 600 ? 27.0 36.4 10.6 4.4 6.9 3.0 1.2 1.8 0.5 0.7 7.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.4
Pitagórica[a] 20–23 Sep 2019 600 ? 28.5 36.0 10.5 4.4 6.8 3.7 0.9 1.2 0.5 0.5 7.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.5
Pitagórica[a] 19–22 Sep 2019 600 ? 27.7 37.6 10.4 4.7 7.6 3.3 0.5 0.9 0.7 0.2 6.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.9
Pitagórica[a] 18–21 Sep 2019 600 ? 26.8 38.7 9.7 5.5 6.9 3.1 0.2 1.0 1.0 0.5 6.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.9
Pitagórica[a] 17–20 Sep 2019 600 ? 26.6 40.6 8.8 5.2 6.8 3.6 0.2 0.5 1.1 0.5 6.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.0
Multidados 9–13 Sep 2019 800 ? 25.1 37.7 12.5 5.2 5.9 5.0 – – – – 9.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.6
Pitagórica 9–12 Sep 2019 605 ? 23.3 39.2 10.0 5.6 7.7 3.2 0.9 – 1.5 – 8.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.9
Eurosondagem 7–12 Sep 2019 2,048 ? 23.3
64/70 		38.3
112/118 		9.5
17/19 		5.5
8 		7.1
13/15 		4.5
6 		– – – – 11.8
1/3 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.0
Intercampus 2–11 Sep 2019 801 ? 23.6
67 		37.9
114 		9.8
18 		6.3
9 		8.6
16 		5.2
6 		– – – – 8.6
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.3
Aximage 1–8 Sep 2019 985 65.5 20.6 38.4 10.2 4.6 5.4 4.9 – – – – 15.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.8
Eurosondagem 1–5 Sep 2019 1,022 ? 23.3 38.1 9.0 6.0 6.9 4.4 – – 1.7 – 10.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.8
ICS/ISCTE 24 Aug–5 Sep 2019 801 ? 23 42 9 5 6 4 0 0 0 0 11.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 19
Pitagórica 12–24 Aug 2019 1,525 ? 20.4 43.6 10.0 4.9 6.6 3.2 0.6 1.3 1.5 – 7.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 23.2
Multidados 18–28 Jul 2019 800 ? 20.3 35.5 14.7 3.3 5.6 7.9 – – – – 12.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.2
Aximage 20–27 Jul 2019 1,385 61.7 20.7 38.1 10.0 5.0 6.7 5.0 – – – – 14.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.4
Aximage 12–15 Jul 2019 601 ? 23.6 37.5 9.4 4.9 6.8 4.0 – – – – 13.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.9
Pitagórica 8–14 Jul 2019 800 ? 21.6 43.2 9.2 6.0 6.8 3.6 – – 1.2 0.8 7.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 21.6
Eurosondagem 7–11 Jul 2019 1,011 ? 23.6 37.3 9.0 6.4 6.8 4.3 – – 1.5 – 11.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.7
ICS/ISCTE 15–27 Jun 2019 801 ? 23 38 11 5 8 4 0 0 0 1 10 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15
Aximage 13–19 Jun 2019 605 64.1 23.1 35.6 9.0 6.6 7.0 4.2 – – 0.8 – 13.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.5
Eurosondagem 2–6 Jun 2019 1,008 ? 24.0 37.1 9.1 6.0 6.3 4.8 – – 1.9 – 10.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.1
2019 EP Elections 26 May 2019 — 30.7 21.9 33.4 9.8 6.2 6.9 5.1 1.8 0.9 1.9 1.5 10.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.5
UCP–CESOP 26 May 2019 4,589 ? 25 39 9 6 8 4 – – 1 – 8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"|14
Aximage 16–20 May 2019 622 63.7 25.7 36.5 9.1 6.9 7.3 1.5 – – 1.3 – 11.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.8
UCP–CESOP 16–19 May 2019 1,882 ? 28 39 9 7 8 3 – – 1 – 5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11
Pitagórica 10–19 May 2019 605 ? 22.5 40.4 8.2 6.1 6.5 3.6 – – 1.5 – 11.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.9
Aximage 3–8 May 2019 601 63.3 27.6 35.4 7.9 7.4 7.2 1.6 – – 1.4 – 11.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.8
Pitagórica 3–13 Apr 2019 605 ? 25.6 37.2 8.3 6.5 6.5 2.8 – – 1.8 – 11.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.6
Eurosondagem 7–11 Apr 2019 1,019 ? 25.0 36.9 7.8 8.4 7.3 2.5 – – 3.5 [b] 8.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.9
Aximage 30 Mar–1 Apr 2019 602 63.6 27.3 34.6 8.5 8.5 7.0 2.2 – – 1.6 10.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.3
Eurosondagem 10–14 Mar 2019 1,020 ? 25.2 37.3 8.1 8.5 7.1 2.4 – – 3.3 8.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.1
Aximage 9–13 Mar 2019 600 ? 23.9 36.3 9.2 9.7 6.8 2.2 – – 1.8 10.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.4
ICS/ISCTE 9–21 Feb 2019 801 ? 25 37 8 8 8 3 1 0 2 8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12
Aximage 5–10 Feb 2019 602 66.3 24.4 36.4 8.9 9.3 6.3 2.5 – – 1.6 10.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.0
Eurosondagem 2–9 Jan 2019 1,010 ? 24.8 40.0 7.6 7.1 7.1 1.9 – – 4.0 7.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.2
Aximage 4–7 Jan 2019 608 65.4 24.1 37.7 8.8 9.4 7.2 3.5 – – 1.2 8.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.6
Aximage 7–11 Dec 2018 602 66.6 24.7 37.0 10.0 8.7 6.3 – – – – 13.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.3
Eurosondagem 7–14 Nov 2018 1,018 ? 26.8 41.8 7.7 7.0 7.0 1.8 – – – 7.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.0
Aximage 9–12 Nov 2018 603 67.0 26.4 37.8 9.1 7.7 6.2 – – – – 12.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.4
Aximage 1–3 Oct 2018 601 67.0 24.0 38.9 9.1 9.2 7.4 – – – [b] 11.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.9
Eurosondagem 5–12 Sep 2018 1,008 ? 27.5 41.4 8.0 7.7 6.9 1.1 – – 7.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.9
Aximage 1–2 Sep 2018 603 66.5 24.1 39.9 7.8 9.2 7.1 – – – 11.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.8
Aximage 13–16 Jul 2018 600 64.6 27.2 39.0 9.5 7.4 7.0 – – – 9.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.8
Eurosondagem 4–11 Jul 2018 1,011 ? 27.3 42.0 7.9 7.5 7.3 1.1 – – 6.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.7
Aximage 9–12 Jun 2018 602 67.2 27.8 37.0 10.3 6.3 7.2 – – – 11.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.2
Aximage 5–9 May 2018 600 67.2 27.6 37.7 10.0 6.7 7.7 – – – 10.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.1
Eurosondagem 3–9 May 2018 1,008 ? 28.0 41.0 8.0 7.0 7.5 1.4 – – 7.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.0
Aximage 8–12 Apr 2018 601 68.7 26.7 38.0 10.0 7.0 7.7 – – – 10.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.3
Eurosondagem 8–14 Mar 2018 1,010 ? 28.4 41.5 7.7 6.6 7.3 1.5 – – 7.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.1
Aximage 2–5 Mar 2018 605 67.3 27.0 39.2 10.0 5.4 7.4 – – – 11.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.2
Aximage 3–6 Feb 2018 603 66.4 26.4 40.6 8.8 6.2 7.7 – – – 10.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.2
Eurosondagem 14–17 Jan 2018 1,018 ? 26.9 41.3 8.5 7.0 6.9 1.8 – – 7.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.4
Aximage 6–9 Jan 2018 600 65.8 26.2 40.2 9.2 6.2 6.8 – – – 11.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 14.0
Eurosondagem 6–12 Dec 2017 1,017 ? 27.9 40.2 8.6 6.9 7.0 1.7 – [b] 7.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.3
Aximage 1–4 Dec 2017 603 67.4 26.1 39.9 9.3 6.5 7.5 – – 10.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.8
Eurosondagem 8–15 Nov 2017 1,010 ? 28.4 40.0 8.7 6.6 6.9 1.7 – 7.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.6
Aximage 4–6 Nov 2017 600 67.4 25.5 39.1 8.7 6.7 8.6 – – 11.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.6
Aximage 14–17 Oct 2017 603 64.5 23.8 41.9 9.0 5.9 7.7 – – 11.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 18.1
Eurosondagem 4–11 Oct 2017 1,011 ? 28.0 41.0 9.0 6.0 7.5 1.4 – 7.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.0
2017 Local Elections 1 Oct 2017 — 55.0 30.3 38.7 3.3 4.1 9.5 1.1 0.3 12.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.4
Aximage 26–28 Sep 2017 600 65.3 25.8 43.7 7.8 4.1 7.8 – – 10.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.9
Eurosondagem 31 Aug–6 Sep 2017 1,007 ? 28.7 40.3 8.4 6.8 7.3 1.5 – 7.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.6
Aximage 29–30 Aug 2017 597 65.0 22.9 43.0 9.1 5.2 7.8 – – 12.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 20.1
Eurosondagem 27 Jul–2 Aug 2017 1,011 ? 28.1 40.8 8.4 6.9 7.6 1.1 – 7.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.7
Aximage 6–11 Jul 2017 604 66.4 22.9 44.0 10.1 5.3 7.8 – – 9.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 21.1
Eurosondagem 28 Jun–5 Jul 2017 1,008 ? 28.6 40.4 8.5 6.2 7.8 1.3 – 7.2 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.8
Aximage 7–11 Jun 2017 601 66.4 24.6 43.7 9.7 4.6 7.8 – – 9.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 19.1
Eurosondagem 1–7 Jun 2017 1,010 ? 29.0 40.0 8.6 6.4 7.5 1.7 – 6.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 11.0
Eurosondagem 3–10 May 2017 1,005 ? 29.0 39.0 9.0 6.9 7.6 1.2 – 7.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.0
Aximage 5–8 May 2017 603 64.7 24.5 42.4 10.0 5.4 7.7 – – 10.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.9
Eurosondagem 30 Mar–5 Apr 2017 1,003 ? 29.3 39.3 9.0 6.4 7.5 1.4 – 7.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 10.0
Aximage 2–4 Apr 2017 600 ? 24.6 42.0 9.5 4.8 7.6 – – 11.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 17.4
Eurosondagem 1–8 Mar 2017 1,011 ? 28.8 38.3 9.2 7.2 8.0 1.8 – 6.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.5
Aximage 4–6 Mar 2017 608 65.5 26.0 41.7 9.2 5.3 6.8 – – 11.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.7
Aximage 5–8 Feb 2017 601 65.4 26.4 42.0 8.4 5.0 7.9 – – 10.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 15.6
Eurosondagem 1–8 Feb 2017 1,017 ? 29.2 37.8 9.2 7.0 8.3 1.1 – 7.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.6
Eurosondagem 5–11 Jan 2017 1,010 ? 30.0 37.3 9.5 6.9 7.8 1.6 – 6.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.3
Aximage 6–9 Jan 2017 603 66.5 25.1 41.7 9.1 6.8 6.9 – – 10.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 16.6
Eurosondagem 7–14 Dec 2016 1,016 ? 30.0 38.0 9.1 6.8 7.7 1.6 – 6.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.0
Aximage 2–4 Dec 2016 605 64.3 27.4 40.1 8.3 6.7 7.5 – – 10.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.7
UCP–CESOP 19–22 Nov 2016 977 ? 30 43 8 6 6 2 – 5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13
Eurosondagem 2–9 Nov 2016 1,011 ? 30.4 37.0 9.7 6.6 8.2 1.1 – 7.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.6
Aximage 31 Oct–1 Nov 2016 601 63.4 28.7 38.3 9.0 6.4 7.3 – – 10.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.6
Eurosondagem 6–12 Oct 2016 1,010 ? 30.7 36.3 9.5 7.0 8.3 1.3 – 6.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 5.6
Aximage 1–3 Oct 2016 608 ? 30.6 37.7 8.7 6.1 7.5 – – 9.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 7.1
Eurosondagem 7–14 Sep 2016 1,009 ? 32.1 36.0 8.9 6.9 8.1 1.4 – 6.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 3.9
Aximage 2–5 Sep 2016 603 65.3 30.1 39.8 10.6 4.6 6.6 – – 8.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.7
Eurosondagem 26 Jul–2 Aug 2016 1,005 ? 32.5 35.5 9.7 6.0 7.8 1.4 – 7.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 3.0
Aximage 15–17 Jul 2016 606 65.0 30.5 39.0 10.0 4.9 6.8 – – 8.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 8.5
Eurosondagem 30 Jun–6 Jul 2016 1,023 ? 32.5 35.0 9.5 6.5 8.0 1.6 – 6.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 2.5
Eurosondagem 1–7 Jun 2016 1,025 ? 31.9 35.3 9.9 6.8 8.1 1.5 – 6.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 3.4
Aximage 30 May–1 Jun 2016 603 65.5 32.1 38.5 10.2 4.2 6.7 – – 8.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.4
Eurosondagem 5–11 May 2016 1,031 ? 31.7 34.8 9.6 7.0 8.4 1.7 – 6.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 3.1
Aximage 7–9 May 2016 600 63.7 32.3 38.5 9.7 4.0 6.6 – – 8.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.2
Eurosondagem 7–13 Apr 2016 1,026 ? 32.0 34.3 9.7 7.7 8.3 1.3 – 6.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 2.3
Aximage 2–3 Apr 2016 601 63.9 33.5 35.6 10.0 4.2 6.2 – – 10.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 2.1
Eurosondagem 3–9 Mar 2016 1,005 ? 32.0 35.0 9.2 8.0 7.8 1.4 – 6.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 3.0
Aximage 1–4 Mar 2016 609 64.4 36.1 33.8 11.3 2.2 6.6 – – 10.0 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 2.3
Eurosondagem 4–10 Feb 2016 1,010 ? 32.5 33.6 10.0 7.5 8.4 1.2 – 6.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 1.1
Aximage 30–31 Jan 2016 606 67.0 36.1 34.8 10.9 2.7 6.6 – – 8.9 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 1.3
Aximage 16–20 Jan 2016 1,301 65.4 35.7 35.3 10.0 3.3 6.8 – – 8.9 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 0.4
Eurosondagem 1–6 Jan 2016 1,016 ? 32.1 33.3 10.1 7.5 8.5 1.5 – 7.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 1.2
Aximage 2–5 Jan 2016 602 64.1 36.2 35.5 9.8 3.6 5.6 – – 9.3 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 0.7
Eurosondagem 3–9 Dec 2015 1,015 ? 33.0 33.7 9.5 8.0 7.8 1.3 – 6.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 0.7
Aximage 28 Nov–2 Dec 2015 605 64.8 35.3 34.0 12.1 4.1 7.4 – – 7.1 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 1.3
Polling firm/Link Fieldwork date Sample size Turnout PàF PS BE CDS–PP CDU PAN L O Lead
style="background:Template:Portugal Ahead/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
UCP–CESOP 5–6 Dec 2015 1,183 64 41 34 11 [c] 7 2 – 5 style="background:Template:Portugal Ahead/meta/color; color:white;"| 7
Aximage 31 Oct–4 Nov 2015 603 63.3 40.1 32.9 10.5 [c] 8.0 2.0 – 6.5 style="background:Template:Portugal Ahead/meta/color; color:white;"| 7.2
Eurosondagem 29 Oct–3 Nov 2015 1,036 ? 40.8 32.5 10.0 [c] 8.0 1.5 – 7.2 style="background:Template:Portugal Ahead/meta/color; color:white;"| 8.3
Intercampus 14–17 Oct 2015 807 ? 41.3 32.7 11.0 [c] 7.7 – – 7.3 style="background:Template:Portugal Ahead/meta/color; color:white;"| 8.6
2015 Legislative Election 4 Oct 2015 — 55.8 38.6
107 		32.3
86 		10.2
19 		[c] 8.3
17 		1.4
1 		0.7
0 		9.5
0 		style="background:Template:Portugal Ahead/meta/color; color:white;"| 6.3

Constituency polling

Lisbon district

Polling firm/Link Fieldwork date Sample size Turnout PSD PS BE CDU CDS–PP PAN L IL A CH O Lead
style="background:Template:Social Democratic Party (Portugal)/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
2019 Legislative Election 6 Oct 2019 — 57.3 22.6
12 		36.7
20 		9.7
5 		7.8
4 		4.4
2 		4.4
2 		2.1
1 		2.5
1 		1.3
0 		2.0
1 		6.5
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"|14.1
Eurosondagem 28 Sep–1 Oct 2019 710 ? 20.5
11 		40.8
22/23 		9.8
5 		7.7
4 		5.2
2/3 		4.0
2 		1.2
0 		1.7
0/1 		1.7
0/1 		1.9
1 		5.5
1 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 20.3
Eurosondagem 18–19 Sep 2019 719 ? 19.1
10 		40.0
22 		10.1
5 		7.7
4 		6.6
3 		4.5
2 		– – – 2.2
1 		9.8
1 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 20.9
Polling firm/Link Fieldwork date Sample size Turnout PàF PS BE CDU CDS–PP PAN L [b] [b] [b] O Lead
style="background:Template:Portugal Ahead/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
2015 Legislative Election 4 Oct 2015 — 60.3 34.7
18 		33.5
18 		10.9
5 		9.8
5 		[c]
 2.0
1 		1.3
0 		9.1
0 		style="background:Template:Portugal Ahead/meta/color; color:white;"| 1.2

Madeira

Polling firm/Link Fieldwork date Sample size Turnout PSD PS BE JPP CDS–PP CDU PAN O Lead
style="background:Template:Social Democratic Party (Portugal)/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
2019 Legislative Election 6 Oct 2019 — 50.3 37.2
3 		33.4
3 		5.2
0 		5.5
0 		6.1
0 		2.1
0 		1.8
0 		8.8
0 		style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"|3.8
UCP–CESOP 14–15 Sep 2019 1,375 ? 41 31 8 5 5 4 2 5 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 10
2015 Legislative Election 4 Oct 2015 — 48.9 37.8
3 		20.9
2 		10.7
1 		6.9
0 		6.0
0 		3.6
0 		1.8
0 		12.4
0 		style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 16.9

Porto district

Polling firm/Link Fieldwork date Sample size Turnout PSD PS BE CDS–PP CDU PAN O Lead
style="background:Template:Social Democratic Party (Portugal)/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
2019 Legislative Election 6 Oct 2019 — 58.6 31.2
15 		36.7
17 		10.1
4 		3.3
1 		4.8
2 		3.5
1 		10.5
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"|5.5
Eurosondagem 29 Sep–1 Oct 2019 771 ? 26.9
12/13 		40.0
17/18 		10.0
4 		4.8
2 		5.0
2 		4.4
2 		8.9
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.1
Eurosondagem 2–4 Jul 2019 1,005 ? 25.0
11/12 		38.7
17/18 		8.9
4 		5.5
2 		5.4
2 		5.0
2 		11.5
0 		style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 13.7
Polling firm/Link Fieldwork date Sample size Turnout PàF PS BE CDS–PP CDU PAN O Lead
style="background:Template:Portugal Ahead/meta/color;"| style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Left Bloc/meta/color;"| style="background:Template:CDS – People's Party/meta/color;"| style="background:Template:Unitary Democratic Coalition/meta/color;"| style="background:Template:People–Animals–Nature/meta/color;"|
2015 Legislative Election 4 Oct 2015 — 60.3 39.6
17 		32.7
14 		11.1
5 		[c] 6.8
3 		1.6
0 		8.2
0 		style="background:Template:Portugal Ahead/meta/color; color:white;"| 6.9

Leadership polls

Preferred Prime Minister

Poll results showing public opinion on who would make the best Prime Minister are shown in the table below in reverse chronological order, showing the most recent first.

António Costa vs Rui Rio

Polling firm/Link Fieldwork date N Both/
O 		NO Lead
style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Social Democratic Party (Portugal)/meta/color;"|
Aximage 1–8 Sep 2019 48.0 19.5 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 28.5
Aximage 12–15 Jul 2019 55.3 27.2 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 28.1
Aximage 13–19 Jun 2019 54.0 25.7 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 28.3
Aximage 3–8 May 2019 52.8 29.5 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 23.3
Aximage 30 Mar–1 Apr 2019 51.0 30.5 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 20.5
Aximage 9–13 Mar 2019 53.8 27.7 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 26.1
Aximage 5–10 Feb 2019 52.7 31.4 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 21.3
Aximage 4–7 Jan 2019 55.4 26.9 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 28.5
Aximage 7–11 Dec 2018 55.3 28.1 15.3 0.6 0.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 27.2
Aximage 9–12 Nov 2018 53.5 30.3 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 23.2
Aximage 1–3 Oct 2018 55.3 30.1 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 25.2
Aximage 1–2 Sep 2018 57.6 28.0 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 29.6
Aximage 13–16 Jul 2018 57.0 30.1 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 26.9
Aximage 9–12 Jun 2018 57.3 31.2 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 26.1
Aximage 5–9 May 2018 59.8 29.0 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 30.8
Aximage 8–12 Apr 2018 61.8 26.4 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 35.4
Aximage 2–5 Mar 2018 62.9 27.8 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 35.1
Aximage 3–6 Feb 2018 64.1 22.0 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 42.1
Eurosondagem 8–10 Jan 2018 51.3 25.1 – – 23.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 26.2
Aximage 6–9 Jan 2018 55.7 33.0 8.1 1.2 2.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 22.7
Eurosondagem 4–6 Dec 2017 51.9 26.9 – – 21.2 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 25.0
Aximage 1–4 Dec 2017 60.1 32.8 4.1 0.6 2.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 27.3
Eurosondagem 6–8 Nov 2017 52.0 25.0 – – 23.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 27.0
Aximage 4–6 Nov 2017 56.2 34.1 6.4 0.7 2.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 22.1
Aximage 31 Oct–1 Nov 2016 48.1 43.0 2.6 1.3 5.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 5.1

António Costa vs Passos Coelho

Polling firm/Link Fieldwork date N Both/
O 		NO Lead
style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Social Democratic Party (Portugal)/meta/color;"|
Aximage 14–17 Oct 2017 67.6 20.8 10.1 0.4 1.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 46.8
Aximage 26–28 Sep 2017 64.0 24.4 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 39.6
Aximage 29–30 Aug 2017 65.8 23.4 9.2 0.9 0.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 42.4
Aximage 6–11 Jul 2017 66.3 23.2 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 43.1
Aximage 7–11 Jun 2017 69.1 22.2 6.8 0.7 1.2 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 46.9
Aximage 5–8 May 2017 66.2 23.3 8.4 0.7 1.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 42.9
Aximage 2–4 Apr 2017 67.5 24.1 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 43.4
Aximage 4–6 Mar 2017 63.6 26.2 8.8 0.6 0.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 37.4
Aximage 5–8 Feb 2017 66.1 25.0 7.5 0.7 0.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 41.1
Aximage 6–9 Jan 2017 64.3 23.7 – – – style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 40.6
Aximage 2–4 Dec 2016 61.6 26.5 10.5 0.6 0.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 35.1
Aximage 31 Oct–1 Nov 2016 55.4 30.8 0.4 12.5 0.9 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 24.6
Aximage 1–3 Oct 2016 54.0 32.8 0.4 12.1 0.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 21.2
Aximage 2–5 Sep 2016 57.3 31.2 0.4 10.3 0.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 26.1
Aximage 15–17 Jul 2016 56.8 31.6 0.8 9.5 1.3 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 25.2
Aximage 30 May–1 Jun 2016 55.2 35.2 7.4 1.4 0.8 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 20.0
Aximage 7–9 May 2016 54.5 36.1 4.9 3.5 1.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 18.4
Aximage 2–3 Apr 2016 50.8 38.8 8.4 0.5 1.5 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 12.0
Aximage 1–4 Mar 2016 47.8 41.6 8.4 0.5 1.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.2
Aximage 30–31 Jan 2016 48.1 41.9 7.6 0.7 1.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 6.2
Aximage 2–5 Jan 2016 48.3 38.9 9.5 1.1 2.2 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 9.4
Aximage 28 Nov–2 Dec 2015 43.2 44.3 10.5 0.6 1.4 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 1.1
Aximage 31 Oct–4 Nov 2015 39.6 45.5 13.7 0.2 1.0 style="background:Template:Social Democratic Party (Portugal)/meta/color; color:white;"| 5.9

António Costa vs Santana Lopes

Polling firm/Link Fieldwork date N Both/
O 		NO Lead
style="background:Template:Socialist Party (Portugal)/meta/color;"| style="background:Template:Social Democratic Party (Portugal)/meta/color;"|
Eurosondagem 8–10 Jan 2018 51.7 29.6 – – 23.6 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 22.1
Aximage 6–9 Jan 2018 71.0 19.0 8.5 0.1 1.4 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 52.0
Eurosondagem 4–6 Dec 2017 52.7 30.2 – – 17.1 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 22.5
Aximage 1–4 Dec 2017 71.7 19.7 6.6 0.0 2.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 52.0
Eurosondagem 6–8 Nov 2017 52.5 27.5 – – 20.0 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 25.0
Aximage 4–6 Nov 2017 68.4 21.9 7.0 0.0 2.7 style="background:Template:Socialist Party (Portugal)/meta/color; color:white;"| 46.5

Notes

  1. ^ a b c d e f g h i j k l m Tracking Poll.
  2. ^ a b c d e f Did not exist.
  3. ^ a b c d e f g The People's Party (CDS–PP) contested the 2015 election in a coalition called Portugal Ahead (PàF) alongside the Social Democratic Party (PSD). CDS–PP elected 18 MPs, while PSD elected 89 MPs.
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