Finland climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 32° | 30° | 36° | 46° | 57° | 66° | 70° | 68° | 61° | 50° | 41° | 34° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 16 | 11 | 11 | 10 | 9 | 10 | 12 | 13 | 12 | 14 | 13 | 15 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 33° | 32° | 34° | 40° | 50° | 61° | 66° | 68° | 62° | 52° | 44° | 38° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Helsinki climate in December
8-year averages · when to visitBest months: June–August · December: Poor
| November | December | January | |
|---|---|---|---|
| Average temperature | ▼ 37°F | 30°F | ▼ 27°F |
| Typical high | ▼ 41°F | 34°F | ▼ 32°F |
| Typical low | ▼ 34°F | 27°F | ▼ 23°F |
| Water temperature | ▼ 44°F | 38°F | ▼ 33°F |
| Precipitation | ▼ 2.9 in | 2.7 in | ▲ 3.0 in |
| Wet days | ▲ 13 d | 15 d | ▲ 16 d |
| Humidity | ▼ 88% | 87% | ▼ 86% |
| Sunshine per day | ▼ 1.9 h | 1.1 h | ▲ 1.5 h |
| Cloud cover | ▲ 74% | 82% | ▼ 78% |
| Midday UV | → 0 | 0 | → 0 |
| Daylight | 7:30 | 5:58 | 6:48 |
| Our take | Poor | Poor | Poor |
December temperatures day by day daily mean + smoothed trend · °F
December precipitation day by day in
December UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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NBM + global weather models
Updated: 8:27 PM
Finland · 9 weather points · Climate reference: Helsinki (60.17°N, 24.94°E) · Europe/Helsinki