Climate of South Africa
South Africa, which geopolitically resides between the 22nd and 34th degrees south, is part of the Southern Hemisphere's subtropical zone. It experiences a wider diversity of climatological changes than most other countries in sub-Saharan Africa, but also tends to retain lower average temperatures than other countries that reside within this range of latitude.
Seasons
South Africa has the seasons of weather as typical for the southern hemisphere, with the coldest days in July-August. The Benguela Current, a cold motion that moves from the lower South Atlantic Ocean (including South Africa, Namibia and Angola), causes moderate temperatures on the West Coast. On the central plateau, which includes Free State and Gauteng provinces, the altitude keeps the average temperatures below 30 °C (86 °F); Johannesburg, for example, lies at 1,753 metres (5,751 ft).
In winter, also due to altitude, temperatures drop to the freezing point, and in some places, even lower. Heavy snows have fallen for the first time in decades in Johannesburg. During winter, it is warmest in the coastal regions, especially on the eastern Indian Ocean coast.
Precipitation is to be expected mainly in the summer months, with the exception of the Western Cape, which is a winter-rain area that enjoys a Mediterranean climate.
Climatic zones
Highveld climate
The Highveld is the eastern plateau area of South Africa. It is typified by Johannesburg, at an elevation of 1,753 metres (5,751 ft). The former CBD is located on the south side of the prominent ridge called the Witwatersrand (Afrikaans: White Water's Ridge) and the terrain falls to the north and south. By and large the Witwatersrand marks the watershed between the Limpopo and Vaal rivers. The north and west of the city has undulating hills while the eastern parts are flatter.
The city enjoys a dry, sunny climate, with the exception of occasional late afternoon downpours in the summer months of October to April. [citation needed] Temperatures in Johannesburg are usually fairly mild due to the city's high altitude, with the average maximum daytime temperature in January of 26 °C (78.8 °F), dropping to an average maximum of around 16 °C (60.8 °F) in June. Winter is the sunniest time of the year, with cool days and cold nights. The temperature occasionally drops to below freezing at night, causing frost. Snow is a rare occurrence, with snowfall having been experienced in May 1956, August 1962, June 1964, September 1981, August 2006 (light), and on 27 June 2007,[1] accumulating up to 10 centimetres (3.9 in) in the southern suburbs.
Regular cold fronts pass over in winter bringing very cold southerly winds but usually clear skies. The annual average rainfall is 713 millimetres (28.1 in), which is mostly concentrated in the summer months. Infrequent showers occur through the course of the winter months.
Climate charts
| Climate data for Johannesburg | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 35 (95) |
34 (93) |
32 (90) |
29 (84) |
26 (79) |
23 (73) |
24 (75) |
26 (79) |
31 (88) |
32 (90) |
33 (91) |
32 (90) |
35 (95) |
| Mean daily maximum °C (°F) | 26 (79) |
25 (77) |
24 (75) |
21 (70) |
19 (66) |
16 (61) |
17 (63) |
19 (66) |
23 (73) |
24 (75) |
24 (75) |
25 (77) |
22 (72) |
| Mean daily minimum °C (°F) | 15 (59) |
14 (57) |
13 (55) |
10 (50) |
7 (45) |
4 (39) |
4 (39) |
6 (43) |
9 (48) |
11 (52) |
13 (55) |
14 (57) |
10 (50) |
| Record low °C (°F) | 7 (45) |
6 (43) |
2 (36) |
1 (34) |
−3 (27) |
−8 (18) |
−5 (23) |
−5 (23) |
−3 (27) |
0 (32) |
2 (36) |
4 (39) |
−8 (18) |
| Average precipitation mm (inches) | 125 (4.9) |
90 (3.5) |
91 (3.6) |
54 (2.1) |
13 (0.5) |
9 (0.4) |
4 (0.2) |
6 (0.2) |
27 (1.1) |
72 (2.8) |
117 (4.6) |
105 (4.1) |
713 (28.1) |
| Source: South African Weather Service [2] | |||||||||||||
Notes
- ^ SABCnews.com. "Joburg covered by snow as temperature drops". Archived from the original on 29 June 2007. Retrieved 16 July 2007.
- ^ "Climate data for Johannesburg". Retrieved 26 July 2007.
[[Category:Climate by country|South Africa
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