Historical weather statistics for Helsinki, Finland
Typical weather in Helsinki
July is typically the warmest month, with median daily highs near 20.4 °C and lows near 14.4 °C. January is typically the coolest month, with median daily highs near -1.3 °C and lows near -5.0 °C. Median precipitation probability is highest in December, at about 48.0 %. Median relative humidity reaches its annual high in November, at about 97.6 %. These are historical climate statistics, not a day-to-day forecast.
Monthly values are medians of historical daily weather statistics. They describe typical conditions and are not a forecast.
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| Month | Daily max temperature (°C) | Daily min temperature (°C) | Wind chance (%) | Humidity (%) | Precipitation chance (%) | Snow depth (cm) |
|---|---|---|---|---|---|---|
| January | -1.3 °C | -5.0 °C | 20.9 % | 97.4 % | 45.7 % | 8.5 cm |
| February | -1.1 °C | -5.7 °C | 17.5 % | 97.1 % | 32.0 % | 19.8 cm |
| March | 1.2 °C | -3.6 °C | 17.3 % | 96.1 % | 29.3 % | 14.9 cm |
| April | 7.3 °C | 0.5 °C | 11.6 % | 93.4 % | 26.2 % | 0.2 cm |
| May | 13.2 °C | 6.2 °C | 11.4 % | 91.5 % | 29.3 % | 0.0 cm |
| June | 17.9 °C | 10.9 °C | 14.3 % | 91.5 % | 38.7 % | 0.0 cm |
| July | 20.4 °C | 14.4 °C | 10.9 % | 92.8 % | 38.7 % | 0.0 cm |
| August | 20.2 °C | 14.2 °C | 15.9 % | 94.2 % | 42.7 % | 0.0 cm |
| September | 15.4 °C | 10.5 °C | 21.8 % | 95.7 % | 41.0 % | 0.0 cm |
| October | 8.8 °C | 4.8 °C | 26.4 % | 96.5 % | 43.0 % | 0.0 cm |
| November | 4.5 °C | 1.4 °C | 28.2 % | 97.6 % | 46.0 % | 0.0 cm |
| December | 1.4 °C | -1.4 °C | 27.3 % | 97.6 % | 48.0 % | 2.1 cm |