Temperature
Cold by day, freezing at night.
Helsinki is usually most comfortable in May and June. Typical daytime highs range from 28–71°F across the year. Most months see little rain.
Cold by day, freezing at night.
Some precipitation is expected this month.
Sunshine is scarce under mostly cloudy skies.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 29° and nights feel near 27°.
Overcast skies this month.
Breezy November days can feel brisker in open spots.
November late afternoons are around 37°F, and early evening stays near 36°F.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 28 | 20 | 2.0 | 12 | 1.3 | 90 |
| Feb | 28 | 19 | 1.7 | 10 | 2.6 | 88 |
| Mar | 35 | 23 | 1.4 | 8 | 4.2 | 81 |
| Apr | 47 | 33 | 1.5 | 8 | 6.0 | 73 |
| May | 58 | 42 | 1.8 | 9 | 8.9 | 68 |
| Jun | 66 | 51 | 2.9 | 11 | 9.9 | 70 |
| Jul | 71 | 57 | 3.3 | 13 | 8.9 | 75 |
| Aug | 69 | 55 | 3.1 | 13 | 7.2 | 79 |
| Sep | 60 | 47 | 2.3 | 10 | 4.5 | 84 |
| Oct | 48 | 39 | 2.4 | 12 | 2.9 | 87 |
| Nov | 39 | 33 | 2.3 | 12 | 1.2 | 91 |
| Dec | 33 | 26 | 2.3 | 12 | 0.9 | 90 |
Similar climates
Want a side-by-side climate view? Compare Helsinki with Warsaw.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology