Pori Arpt climate by month
Averages and records for each calendar month at Pori Arpt, Finland, from 1959 to 2026. The warmest month is July, averaging 21.5°C; the coolest is February at −2.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.4°C | −8.7°C | 9.6°C28 January 1992 | −35.7°C30 January 1967 | 59 / 60 |
| February | −2.5°C | −9.4°C | 9.5°C21 February 1990 | −36.8°C3 February 1966 | 59 / 59 |
| March | 1.8°C | −5.8°C | 14.5°C19 March 1990 | −27.1°C1 March 1960 | 59 / 59 |
| April | 7.9°C | −0.9°C | 24.5°C29 April 1998 | −16.3°C1 April 1963 | 58 / 59 |
| May | 14.7°C | 3.8°C | 28.7°C29 May 2024 | −5.8°C1 May 1961 | 59 / 59 |
| June | 19.4°C | 8.7°C | 32.9°C28 June 2022 | −2.0°C1 June 1977 | 58 / 59 |
| July | 21.5°C | 11.4°C | 33.3°C13 July 2010 | 1.7°C3 July 1967 | 59 / 59 |
| August | 19.9°C | 10.4°C | 32.5°C7 August 2023 | −1.1°C26 August 1984 | 59 / 59 |
| September | 14.4°C | 6.3°C | 28.2°C6 September 1968 | −7.3°C30 September 1976 | 58 / 58 |
| October | 8.4°C | 2.3°C | 18.5°C1 October 2000 | −16.7°C31 October 1992 | 58 / 59 |
| November | 2.8°C | −2.2°C | 14.7°C3 November 2020 | −22.5°C25 November 1971 | 59 / 59 |
| December | −0.6°C | −6.3°C | 10.4°C8 December 2006 | −35.4°C31 December 1978 | 59 / 59 |
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 58 to 59 years each.
See what Pori 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.