July
July · August · June
Finland · 1991–2020
July leads for comfortable weather in Viitasaari: typically 21.8°C by day, 13.2°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
June · August · July
The weakest month is January, scoring 5 against July’s 76 — days reach only -4.7°C, 29° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -4.7°C | -10.4°C | 38 mm | 10.5 | 5 h 43 | 5 | Strong coverage |
| February | -4.4°C | -10.9°C | 32 mm | 8.7 | 8 h 34 | 5 | Strong coverage |
| March | 0.8°C | -7.1°C | 32 mm | 8.3 | 11 h 29 | 5 | Strong coverage |
| April | 7.3°C | -1.6°C | 31 mm | 7.6 | 14 h 47 | 11 | Strong coverage |
| May | 14.3°C | 4.3°C | 47 mm | 9 | 17 h 56 | 42 | Strong coverage |
| June | 19.2°C | 10°C | 64 mm | 10.1 | 20 h 15 | 65 | Strong coverage |
| July | 21.8°C | 13.2°C | 81 mm | 11.1 | 19 h 14 | 76 | Strong coverage |
| August | 19.6°C | 11.7°C | 66 mm | 10.6 | 16 h 10 | 68 | Strong coverage |
| September | 13.7°C | 7.2°C | 56 mm | 9.6 | 12 h 51 | 43 | Strong coverage |
| October | 6.3°C | 1.8°C | 57 mm | 11.2 | 9 h 42 | 7 | Strong coverage |
| November | 0.9°C | -2.8°C | 48 mm | 10.6 | 6 h 38 | 5 | Strong coverage |
| December | -2.4°C | -7.1°C | 46 mm | 11.8 | 4 h 45 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.6°C11 Jan 1971 | -37.1°C8 Jan 1987 | 23 mm25 Jan 2002 | 89 mm2005 · driest 6 mm in 2026 | 57 |
| February | 10.2°C23 Feb 1990 | -35.2°C15 Feb 1978 | 23 mm16 Feb 2024 | 67 mm2001 · driest 3 mm in 1994 | 57 |
| March | 14.7°C28 Mar 2007 | -30.6°C4 Mar 1971 | 20 mm9 Mar 2002 | 67 mm1994 · driest 6 mm in 2005 | 57 |
| April | 22.5°C30 Apr 1998 | -19.2°C1 Apr 1998 | 24 mm2 Apr 1985 | 75 mm1977 · driest 7 mm in 1974 | 57 |
| May | 29.3°C24 May 2014 | -6.9°C1 May 1971 | 41 mm22 May 1988 | 118 mm2003 · driest 5 mm in 1978 | 57 |
| June | 32.3°C22 Jun 2021 | -0.5°C2 Jun 2023 | 62 mm27 Jun 1980 | 176 mm1981 · driest 17 mm in 1970 | 57 |
| July | 33.9°C29 Jul 2010 | 4.6°C9 Jul 1975 | 52 mm28 Jul 2004 | 159 mm2023 · driest 14 mm in 2018 | 55 |
| August | 30.6°C1 Aug 2018 | 0.3°C27 Aug 1973 | 49 mm4 Aug 2010 | 185 mm2021 · driest 23 mm in 1984 | 55 |
| September | 26.4°C5 Sep 2024 | -4.5°C28 Sep 1986 | 56 mm14 Sep 2024 | 144 mm1991 · driest 20 mm in 2022 | 56 |
| October | 20.3°C14 Oct 2018 | -13.6°C23 Oct 1992 | 47 mm1 Oct 2019 | 113 mm2006 · driest 14 mm in 2002 | 56 |
| November | 11.4°C2 Nov 2015 | -26.7°C30 Nov 1983 | 31 mm4 Nov 2014 | 108 mm1996 · driest 6 mm in 1993 | 56 |
| December | 8.5°C21 Dec 2015 | -34.5°C16 Dec 1978 | 20 mm12 Dec 2017 | 82 mm2017 · driest 10 mm in 1977 | 56 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 |
| February | 0 | 0 | 27 | <1 |
| March | 0 | 0 | 28 | <1 |
| April | 0 | 0 | 19 | <1 |
| May | <1 | 0 | 5 | 1 |
| June | 3 | <1 | 0 | 2 |
| July | 7 | <1 | 0 | 2 |
| August | 3 | <1 | 0 | 2 |
| September | 0 | 0 | <1 | 2 |
| October | 0 | 0 | 10 | 1 |
| November | 0 | 0 | 21 | <1 |
| December | 0 | 0 | 28 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 34% | <1% | 44% | -10.3–-1.7°C |
| February | 0% | 28% | 1% | 32% | -9.6–-0.4°C |
| March | 0% | 27% | <1% | 31% | -2.4–3.1°C |
| April | <1% | 26% | 2% | 31% | 3.9–9.0°C |
| May | 14% | 27% | 3% | 34% | 12.0–17.2°C |
| June | 35% | 30% | 6% | 37% | 17.2–22.2°C |
| July | 47% | 36% | 7% | 50% | 19.5–24.9°C |
| August | 30% | 36% | 8% | 45% | 16.7–21.7°C |
| September | 4% | 33% | 5% | 44% | 10.6–15.6°C |
| October | <1% | 35% | 4% | 47% | 4.2–8.2°C |
| November | 0% | 38% | 2% | 50% | -2.5–3.5°C |
| December | 0% | 36% | 2% | 48% | -8.1–1.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page