Turku Arpt climate by month
Averages and records for each calendar month at Turku Arpt, Finland, from 1952 to 2026. The warmest month is July, averaging 21.9°C; the coolest is February at −2.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.2°C | −8.0°C | 8.5°C10 January 2007 | −34.8°C10 January 1987 | 61 / 67 |
| February | −2.4°C | −8.7°C | 10.2°C23 February 1990 | −35.2°C3 February 1966 | 60 / 66 |
| March | 1.9°C | −5.6°C | 15.8°C26 March 2007 | −27.2°C27 March 1952 | 62 / 66 |
| April | 8.2°C | −0.8°C | 24.5°C27 April 1993 | −18.9°C1 April 1955 | 61 / 66 |
| May | 15.2°C | 4.2°C | 30.0°C31 May 1995 | −6.2°C1 May 1971 | 62 / 67 |
| June | 20.1°C | 9.4°C | 32.0°C14 June 1977 | −2.2°C7 June 1954 | 62 / 67 |
| July | 21.9°C | 12.0°C | 32.5°C14 July 2021 | 1.8°C6 July 2009 | 64 / 67 |
| August | 20.4°C | 11.2°C | 32.0°C7 August 2023 | 0.2°C26 August 1984 | 65 / 67 |
| September | 14.9°C | 7.0°C | 28.0°C5 September 2024 | −6.9°C30 September 1976 | 63 / 66 |
| October | 8.8°C | 2.8°C | 18.9°C4 October 1973 | −15.0°C31 October 1992 | 62 / 66 |
| November | 3.2°C | −1.6°C | 14.0°C6 November 2020 | −22.2°C30 November 1957 | 61 / 66 |
| December | −0.3°C | −5.6°C | 10.0°C6 December 2006 | −33.8°C31 December 1978 | 60 / 66 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 60 to 65 years each.
See what Turku Arpt is doing right now
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.