July
July · August · June
72climate match
Finland · 1991–2020
Best time to visit
Viensuu.
July leads for comfortable weather in Viensuu: typically 21.7°C by day, 11.4°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high21.7°C
Typical low11.4°C
Rain in July84 mm
July
July · August · June
34climate match
August
August · June · July
81climate match
The weakest month is January, scoring 5 against July’s 72 — days reach only -6°C, 30° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
5-6° / -13.4°
Feb
5-5.5° / -13.9°
Mar
5-0.1° / -9.6°
Apr
56.2° / -3.2°
May
3713.8° / 2.8°
Jun
6018.8° / 8.3°
Jul
7221.7° / 11.4°
Aug
6219.2° / 9.6°
Sep
3613.3° / 5.4°
Oct
55.8° / 0.7°
Nov
50.1° / -4.5°
Dec
5-3.4° / -9.5°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -6°C | -13.4°C | 36 mm | 10 | 5 h 38 | 5 | Strong coverage |
| February | -5.5°C | -13.9°C | 31 mm | 9 | 8 h 31 | 5 | Strong coverage |
| March | -0.1°C | -9.6°C | 29 mm | 8.4 | 11 h 28 | 5 | Strong coverage |
| April | 6.2°C | -3.2°C | 29 mm | 7.2 | 14 h 48 | 5 | Strong coverage |
| May | 13.8°C | 2.8°C | 48 mm | 8.6 | 18 h 01 | 37 | Strong coverage |
| June | 18.8°C | 8.3°C | 67 mm | 10.3 | 20 h 25 | 60 | Strong coverage |
| July | 21.7°C | 11.4°C | 84 mm | 11.3 | 19 h 21 | 72 | Strong coverage |
| August | 19.2°C | 9.6°C | 75 mm | 10.8 | 16 h 13 | 62 | Strong coverage |
| September | 13.3°C | 5.4°C | 68 mm | 10.3 | 12 h 52 | 36 | Strong coverage |
| October | 5.8°C | 0.7°C | 58 mm | 12 | 9 h 40 | 5 | Strong coverage |
| November | 0.1°C | -4.5°C | 46 mm | 11.1 | 6 h 33 | 5 | Strong coverage |
| December | -3.4°C | -9.5°C | 46 mm | 11 | 4 h 38 | 5 | Strong coverage |
What has changed
Viensuu runs +1.9°C
on the 1961–1990 baseline.
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.
Jan
+2.0
Feb
+2.5
Mar
+1.8
Apr
+1.8
May
+1.0
Jun
+1.1
Jul
+0.9
Aug
+2.3
Sep
+2.6
Oct
+1.5
Nov
+2.4
Dec
+2.8
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 6.7°C11 Jan 1971 | -40.8°C2 Jan 2003 | 17 mm30 Jan 2005 | 69 mm2008 · driest 6 mm in 2026 | 56 |
| February | 6.6°C23 Feb 1990 | -39.0°C12 Feb 1994 | 25 mm27 Feb 2000 | 61 mm2004 · driest 4 mm in 1986 | 56 |
| March | 11.6°C28 Mar 2007 | -33.4°C10 Mar 2021 | 17 mm22 Mar 2023 | 63 mm2010 · driest 11 mm in 2005 | 56 |
| April | 23.6°C26 Apr 2001 | -24.1°C11 Apr 1988 | 25 mm29 Apr 2015 | 72 mm2024 · driest 3 mm in 2026 | 56 |
| May | 30.2°C19 May 2021 | -9.7°C1 May 1971 | 32 mm22 May 1988 | 90 mm2014 · driest 0 mm in 1978 | 56 |
| June | 31.8°C26 Jun 2013 | -2.2°C3 Jun 2003 | 75 mm27 Jun 2000 | 156 mm1981 · driest 27 mm in 2008 | 56 |
| July | 35.4°C29 Jul 2010 | 0.7°C31 Jul 2006 | 69 mm27 Jul 1997 | 170 mm2012 · driest 9 mm in 1973 | 55 |
| August | 31.9°C8 Aug 2010 | -2.0°C27 Aug 1973 | 50 mm19 Aug 1992 | 163 mm1992 · driest 24 mm in 1996 | 55 |
| September | 25.9°C4 Sep 2024 | -7.8°C24 Sep 1973 | 33 mm23 Sep 1983 | 132 mm1994 · driest 13 mm in 1990 | 55 |
| October | 18.4°C14 Oct 2018 | -21.5°C29 Oct 1992 | 34 mm27 Oct 2006 | 129 mm2008 · driest 1 mm in 2009 | 55 |
| November | 10.9°C5 Nov 2025 | -30.5°C30 Nov 1983 | 19 mm11 Nov 2022 | 104 mm1996 · driest 10 mm in 1993 | 55 |
| December | 7.6°C6 Dec 2006 | -38.1°C31 Dec 2002 | 25 mm12 Dec 1996 | 84 mm2006 · driest 6 mm in 2010 | 55 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 30 | <1 |
| February | 0 | 27 | <1 |
| March | 0 | 29 | <1 |
| April | 0 | 21 | <1 |
| May | <1 | 9 | 1 |
| June | 3 | <1 | 2 |
| July | 6 | 0 | 3 |
| August | 2 | <1 | 2 |
| September | 0 | 4 | 2 |
| October | 0 | 14 | <1 |
| November | 0 | 22 | <1 |
| December | 0 | 28 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 33% | <1% | 44% | -12.2–-3.0°C |
| February | 0% | 30% | <1% | 36% | -10.6–-0.8°C |
| March | 0% | 27% | <1% | 31% | -3.4–2.3°C |
| April | <1% | 24% | 2% | 26% | 3.2–8.4°C |
| May | 13% | 27% | 4% | 34% | 11.0–16.3°C |
| June | 31% | 33% | 6% | 43% | 17.0–21.7°C |
| July | 47% | 36% | 8% | 48% | 19.3–24.8°C |
| August | 29% | 36% | 7% | 47% | 16.2–21.1°C |
| September | 4% | 36% | 6% | 48% | 10.5–15.0°C |
| October | 0% | 37% | 3% | 53% | 3.0–7.8°C |
| November | 0% | 39% | 2% | 53% | -3.8–3.1°C |
| December | 0% | 37% | 1% | 48% | -8.8–0.3°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
Nearby, measured,
and named.
- Place identity
- GeoNames 631788
- NOAA station
- FIE00144982 · LIEKSA LAMPELA
- Station distance
- 11.7 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 63.31°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.