Average annual temperature is 6.2 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -17.5 °C
Number of sunny days: 133 days
Number of rainy days: 188 days
Number of snow days: 44 days
Look at detailed online map of Osmalahti
* Weather data for Osmalahti Finland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 3.9 | 7.2 | 7.1 | 16.5 | 23.1 | 28.9 | 24.1 | 29.9 | 21.9 | 15.0 | 8.1 | 4.2 |
| Average daytime temperature (°C) | 0.6 | 0.5 | 1.3 | 10.1 | 15.0 | 21.8 | 20.1 | 20.1 | 17.8 | 7.3 | 1.6 | -2.5 |
| Average temperature (°C) | -1.3 | -1.8 | -2.4 | 4.6 | 9.9 | 16.6 | 16.3 | 16.8 | 14.8 | 4.8 | -0.2 | -4.1 |
| Average night temperature (°C) | -3.1 | -4.9 | -6.7 | -0.9 | 3.8 | 10.1 | 12.3 | 13.8 | 11.6 | 2.3 | -2.2 | -6.0 |
| Absolute minimum temperature (°C) | -16.3 | -13.8 | -17.5 | -12.9 | -3.6 | 2.7 | 9.3 | 11.0 | 5.1 | -5.2 | -11.7 | -14.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.0 | 10.0 | 13.0 | 15.0 | 18.0 | 19.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 6.8 | 9.1 | 11.8 | 14.6 | 17.3 | 18.8 | 18.1 | 15.6 | 12.9 | 10.1 | 7.5 | 5.9 |
| Daylight minimum duration (h) | 5.0 | 7.0 | 10.0 | 13.0 | 16.0 | 18.0 | 17.0 | 14.0 | 11.0 | 8.0 | 6.0 | 5.0 |
| Sunshine mean duration (h) | 1.3 | 3.3 | 5.9 | 11.1 | 13.2 | 15.2 | 13.0 | 8.9 | 7.5 | 4.9 | 1.4 | 0.5 |
| Precipitation (mm) | 83 | 42 | 87 | 31 | 42 | 32 | 107 | 163 | 52 | 121 | 90 | 41 |
| Sunny days | 12 | 15 | 9 | 21 | 21 | 18 | 4 | 2 | 11 | 7 | 5 | 8 |
| Rainy days | 16 | 6 | 12 | 9 | 10 | 12 | 27 | 29 | 19 | 23 | 17 | 8 |
| Snow days | 3 | 7 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 15 |
The best time to visit Osmalahti during the most sunny months:
Months with the longest average daylight duration in Osmalahti:
The largest precipitation sum in Osmalahti is at