Finland was represented by Katri Helena, with the song '"Katson sineen taivaan", at the 1979 Eurovision Song Contest, which took place on 31 March in Jerusalem. "Katson sineen taivaan" was chosen as the Finnish entry at the national final organised by broadcaster Yle and held on 10 February. This was the first of Katri Helena's two Eurovision appearances for Finland, after she had finished runner-up in three previous national finals (1969, 1972 and 1978).
The final was held at the Kulttuuritalo in Helsinki, hosted by Marjatta Leppänen. Six songs took part, with the winner chosen by a 30-member jury containing a mix of music industry professionals and TV viewers. Other participants included Finnish Eurovision representatives Markku Aro (1969) and Kirka (1984).
On the night of the final Katri Helena performed 5th in the running order, following Ireland and preceding Monaco. At the close of voting "Katson sineen taivan" had picked up 38 points (the highest an 8 from Switzerland), placing Finland 14th of the 19 entries. The Finnish jury awarded its 12 points to contest winners Israel.