July
July · August · June
86climate match
Finland · 1991–2020
Best time to visit
Hamina.
July leads for comfortable weather in Hamina: typically 21°C by day, 14.9°C at night, with 43 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high21°C
Typical low14.9°C
Rain in July43 mm
July
July · August · June
54climate match
July
July · August · June
83climate match
The weakest month is January, scoring 5 against July’s 86 — days reach only -1.7°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
5-1.7° / -6.1°
Feb
5-2.6° / -7.5°
Mar
50.7° / -4.8°
Apr
105.9° / 0.2°
May
4312.5° / 5.8°
Jun
6517.4° / 11.1°
Jul
8621° / 14.9°
Aug
7920° / 14.4°
Sep
5514.9° / 10.3°
Oct
218.7° / 5°
Nov
54.1° / 0.7°
Dec
51° / -2.9°
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | -1.7°C | -6.1°C | 42 mm | 10.4 | 1.2°C | 6 h 30 | 5 | Good coverage |
| February | -2.6°C | -7.5°C | 40 mm | 9.5 | 0.2°C | 8 h 56 | 5 | Good coverage |
| March | 0.7°C | -4.8°C | 33 mm | 7.4 | 0.3°C | 11 h 32 | 5 | Good coverage |
| April | 5.9°C | 0.2°C | 29 mm | 6.7 | 1.8°C | 14 h 30 | 10 | Good coverage |
| May | 12.5°C | 5.8°C | 34 mm | 6 | 6.4°C | 17 h 14 | 43 | Good coverage |
| June | 17.4°C | 11.1°C | 50 mm | 7.8 | 11.8°C | 19 h 01 | 65 | Good coverage |
| July | 21°C | 14.9°C | 43 mm | 6.5 | 16.6°C | 18 h 16 | 86 | Good coverage |
| August | 20°C | 14.4°C | 54 mm | 7.9 | 17.5°C | 15 h 43 | 79 | Good coverage |
| September | 14.9°C | 10.3°C | 50 mm | 8.2 | 14.4°C | 12 h 47 | 55 | Good coverage |
| October | 8.7°C | 5°C | 61 mm | 10.4 | 10.3°C | 9 h 56 | 21 | Good coverage |
| November | 4.1°C | 0.7°C | 61 mm | 11.4 | 6.6°C | 7 h 15 | 5 | Good coverage |
| December | 1°C | -2.9°C | 48 mm | 10.8 | 3.5°C | 5 h 44 | 5 | Good coverage |
What has changed
Hamina 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
+2.4
Feb
+2.9
Mar
+2.1
Apr
+2.0
May
+1.3
Jun
+0.8
Jul
+1.7
Aug
+1.6
Sep
+2.2
Oct
+1.0
Nov
+2.0
Dec
+2.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 7.1°C6 Jan 1973 | -35.3°C10 Jan 1987 | 23 mm23 Jan 1960 | 88 mm1959 · driest 7 mm in 1972 | 68 |
| February | 6.4°C9 Feb 1993 | -32.7°C3 Feb 1966 | 31 mm16 Feb 1999 | 99 mm1999 · driest 3 mm in 1994 | 68 |
| March | 12.1°C26 Mar 2007 | -27.5°C4 Mar 1977 | 20 mm9 Mar 1981 | 69 mm2023 · driest 6 mm in 2005 | 68 |
| April | 18.6°C27 Apr 2019 | -18.3°C3 Apr 1960 | 25 mm10 Apr 1959 | 84 mm1970 · driest 5 mm in 2019 | 68 |
| May | 26.2°C31 May 2024 | -4.1°C2 May 1996 | 47 mm22 May 1983 | 91 mm2021 · driest 2 mm in 2024 | 68 |
| June | 29.8°C25 Jun 1999 | 1.8°C10 Jun 1982 | 36 mm19 Jun 2025 | 135 mm1991 · driest 3 mm in 1970 | 68 |
| July | 31.7°C16 Jul 2021 | 6.6°C3 Jul 1987 | 50 mm21 Jul 1993 | 137 mm1977 · driest 7 mm in 1973 | 67 |
| August | 29.5°C5 Aug 1975 | 5.5°C28 Aug 1959 | 53 mm7 Aug 1966 | 129 mm1987 · driest 1 mm in 1996 | 67 |
| September | 24.8°C4 Sep 2024 | -0.7°C28 Sep 1986 | 36 mm23 Sep 1983 | 125 mm2018 · driest 8 mm in 1959 | 67 |
| October | 16.1°C3 Oct 1999 | -8.0°C31 Oct 1992 | 32 mm9 Oct 2024 | 159 mm1974 · driest 13 mm in 2002 | 67 |
| November | 12.6°C12 Nov 2022 | -16.5°C30 Nov 1980 | 46 mm16 Nov 2025 | 128 mm1980 · driest 6 mm in 1993 | 67 |
| December | 8.3°C6 Dec 2006 | -29.8°C30 Dec 1978 | 22 mm12 Dec 2017 | 115 mm1981 · driest 9 mm in 2002 | 67 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 26 | <1 |
| February | 0 | 25 | <1 |
| March | 0 | 26 | <1 |
| April | 0 | 13 | <1 |
| May | 0 | <1 | <1 |
| June | <1 | 0 | 2 |
| July | 4 | 0 | 1 |
| August | 2 | 0 | 2 |
| September | 0 | 0 | 1 |
| October | 0 | 3 | 2 |
| November | 0 | 12 | 1 |
| December | 0 | 21 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 34% | 1% | 46% | -7.3–0.9°C |
| February | 0% | 30% | 2% | 39% | -7.9–1.0°C |
| March | 0% | 25% | 1% | 30% | -2.4–2.9°C |
| April | 0% | 23% | 1% | 25% | 3.4–7.4°C |
| May | 4% | 20% | 3% | 20% | 10.4–14.4°C |
| June | 25% | 24% | 4% | 27% | 15.2–20.2°C |
| July | 44% | 25% | 5% | 31% | 18.2–23.9°C |
| August | 31% | 30% | 6% | 36% | 17.3–21.5°C |
| September | 3% | 30% | 5% | 38% | 12.3–16.2°C |
| October | 0% | 35% | 6% | 46% | 6.7–10.6°C |
| November | 0% | 40% | 4% | 56% | 1.4–6.3°C |
| December | 0% | 37% | 3% | 49% | -3.1–3.4°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 659169
- NOAA station
- FIE00142341 · KOTKA RANKKI
- Station distance
- 25.2 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 20 usable years
- Daylight
- Calculated from latitude 60.57°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 22 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.