July
July · August · June
77climate match
Finland · 1991–2020
Best time to visit
Somero.
July leads for comfortable weather in Somero: typically 22.3°C by day, 11.6°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high22.3°C
Typical low11.6°C
Rain in July74 mm
July
July · August · June
40climate match
June
June · August · July
83climate match
The weakest month is January, scoring 5 against July’s 77 — days reach only -2.2°C, 26° 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
5-2.2° / -7.9°
Feb
5-2.3° / -8.7°
Mar
52° / -5.8°
Apr
188.9° / -0.8°
May
4815.7° / 3.9°
Jun
6419.6° / 8.6°
Jul
7722.3° / 11.6°
Aug
7020.8° / 10.5°
Sep
4815.3° / 6.5°
Oct
138° / 2°
Nov
52.7° / -1.6°
Dec
5-0.3° / -5.2°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -2.2°C | -7.9°C | 47 mm | 10.9 | 6 h 29 | 5 | Strong coverage |
| February | -2.3°C | -8.7°C | 35 mm | 8.7 | 8 h 56 | 5 | Strong coverage |
| March | 2°C | -5.8°C | 31 mm | 8 | 11 h 32 | 5 | Strong coverage |
| April | 8.9°C | -0.8°C | 32 mm | 7.6 | 14 h 30 | 18 | Strong coverage |
| May | 15.7°C | 3.9°C | 38 mm | 7.3 | 17 h 14 | 48 | Strong coverage |
| June | 19.6°C | 8.6°C | 67 mm | 9.5 | 19 h 03 | 64 | Strong coverage |
| July | 22.3°C | 11.6°C | 74 mm | 9.9 | 18 h 17 | 77 | Strong coverage |
| August | 20.8°C | 10.5°C | 72 mm | 10.3 | 15 h 44 | 70 | Strong coverage |
| September | 15.3°C | 6.5°C | 53 mm | 9.1 | 12 h 47 | 48 | Strong coverage |
| October | 8°C | 2°C | 63 mm | 10.8 | 9 h 56 | 13 | Strong coverage |
| November | 2.7°C | -1.6°C | 56 mm | 11 | 7 h 15 | 5 | Strong coverage |
| December | -0.3°C | -5.2°C | 51 mm | 11.7 | 5 h 43 | 5 | Strong coverage |
What has changed
Somero runs +2.0°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
+2.2
Feb
+2.8
Mar
+2.5
Apr
+2.3
May
+1.3
Jun
+0.8
Jul
+1.5
Aug
+1.8
Sep
+2.5
Oct
+1.1
Nov
+2.2
Dec
+2.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.2°C10 Jan 2007 | -36.7°C13 Jan 1968 | 26 mm1 Jan 1962 | 81 mm2015 · driest 6 mm in 1972 | 68 |
| February | 9.4°C23 Feb 1990 | -39.3°C3 Feb 1966 | 30 mm22 Feb 2020 | 109 mm2020 · driest 1 mm in 1994 | 68 |
| March | 16.1°C27 Mar 2007 | -29.0°C7 Mar 1981 | 19 mm16 Mar 2024 | 58 mm2023 · driest 2 mm in 1969 | 68 |
| April | 23.5°C27 Apr 1993 | -20.9°C1 Apr 1963 | 22 mm24 Apr 1977 | 83 mm1972 · driest 2 mm in 2002 | 68 |
| May | 29.2°C31 May 1995 | -7.0°C6 May 1974 | 27 mm26 May 2006 | 98 mm2021 · driest 1 mm in 1993 | 68 |
| June | 32.1°C22 Jun 2021 | -3.1°C5 Jun 1962 | 79 mm10 Jun 1980 | 131 mm1980 · driest 11 mm in 1969 | 68 |
| July | 32.3°C30 Jul 1994 | 0.8°C3 Jul 1965 | 85 mm5 Jul 1972 | 164 mm1970 · driest 1 mm in 1994 | 68 |
| August | 31.8°C11 Aug 1992 | -1.5°C27 Aug 1973 | 62 mm21 Aug 1985 | 184 mm2005 · driest 13 mm in 2002 | 67 |
| September | 27.6°C6 Sep 1968 | -8.8°C30 Sep 1976 | 55 mm14 Sep 2024 | 136 mm2001 · driest 8 mm in 1959 | 67 |
| October | 18.4°C3 Oct 1984 | -16.4°C31 Oct 1992 | 31 mm22 Oct 2005 | 154 mm2006 · driest 13 mm in 2016 | 67 |
| November | 13.3°C12 Nov 2022 | -24.5°C27 Nov 1989 | 39 mm25 Nov 2024 | 128 mm1996 · driest 3 mm in 1993 | 67 |
| December | 10.8°C20 Dec 2015 | -33.4°C31 Dec 1978 | 23 mm11 Dec 2006 | 118 mm2011 · driest 5 mm in 2002 | 67 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 |
| February | 0 | 0 | 25 | <1 |
| March | 0 | 0 | 26 | <1 |
| April | 0 | 0 | 17 | <1 |
| May | 1 | 0 | 6 | <1 |
| June | 4 | <1 | <1 | 2 |
| July | 8 | <1 | 0 | 2 |
| August | 5 | <1 | 0 | 2 |
| September | 0 | 0 | 3 | 1 |
| October | 0 | 0 | 11 | 2 |
| November | 0 | 0 | 18 | 1 |
| December | 0 | 0 | 24 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 33% | 1% | 44% | -7.7–0.3°C |
| February | 0% | 27% | <1% | 33% | -7.2–1.3°C |
| March | 0% | 24% | <1% | 28% | -1.2–4.5°C |
| April | 1% | 25% | 2% | 29% | 5.0–10.8°C |
| May | 18% | 23% | 3% | 27% | 13.1–18.2°C |
| June | 38% | 29% | 5% | 37% | 17.3–22.3°C |
| July | 50% | 33% | 7% | 43% | 19.4–24.7°C |
| August | 37% | 35% | 8% | 48% | 17.6–22.2°C |
| September | 6% | 34% | 5% | 43% | 11.8–16.7°C |
| October | 0% | 35% | 5% | 48% | 5.7–10.1°C |
| November | 0% | 38% | 3% | 50% | -0.5–5.0°C |
| December | 0% | 36% | 2% | 47% | -5.3–2.6°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 636345
- NOAA station
- FI000002963 · JOKIOINEN JOKIOISTEN OBSERVATO
- Station distance
- 22 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 60.62°, 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.