Average annual temperature is 3.1 °C
Absolute maximum temperature: 28.7 °C
Absolute minimum temperature: -25.6 °C
Number of sunny days: 122 days
Number of rainy days: 151 days
Number of snow days: 92 days
Look at detailed online map of Hetejärvi
* Weather data for Hetejärvi 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) | 5.1 | 3.3 | 1.1 | 12.4 | 22.7 | 26.0 | 24.3 | 28.7 | 20.9 | 10.2 | 3.2 | 1.8 |
| Average daytime temperature (°C) | -2.8 | -3.3 | -3.5 | 6.2 | 13.3 | 18.4 | 19.1 | 20.3 | 15.0 | 2.1 | -3.1 | -5.9 |
| Average temperature (°C) | -4.6 | -5.8 | -7.1 | 0.5 | 8.4 | 14.3 | 15.4 | 16.2 | 12.0 | -0.1 | -5.0 | -7.5 |
| Average night temperature (°C) | -6.7 | -8.4 | -10.8 | -4.5 | 2.6 | 9.2 | 11.2 | 11.9 | 9.0 | -2.4 | -7.4 | -9.2 |
| Absolute minimum temperature (°C) | -21.6 | -18.3 | -25.6 | -13.5 | -6.3 | 1.7 | 7.7 | 6.5 | 1.6 | -10.5 | -16.2 | -17.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 6.0 | 9.0 | 13.0 | 16.0 | 20.0 | 22.0 | 21.0 | 18.0 | 14.0 | 11.0 | 7.0 | 4.0 |
| Daylight mean duration (h) | 5.1 | 8.4 | 11.8 | 15.3 | 18.9 | 21.9 | 20.2 | 16.6 | 13.1 | 9.6 | 6.2 | 3.8 |
| Daylight minimum duration (h) | 3.0 | 6.0 | 10.0 | 13.0 | 17.0 | 20.0 | 18.0 | 14.0 | 11.0 | 7.0 | 4.0 | 3.0 |
| Sunshine mean duration (h) | 0.6 | 1.6 | 5.9 | 10.7 | 12.1 | 13.8 | 9.9 | 10.8 | 5.5 | 2.7 | 0.7 | 0.1 |
| Precipitation (mm) | 62 | 22 | 49 | 36 | 52 | 67 | 100 | 103 | 142 | 82 | 42 | 39 |
| Sunny days | 8 | 9 | 10 | 19 | 14 | 11 | 5 | 10 | 5 | 13 | 9 | 9 |
| Rainy days | 8 | 1 | 3 | 7 | 15 | 19 | 26 | 21 | 25 | 13 | 7 | 6 |
| Snow days | 15 | 18 | 18 | 4 | 2 | 0 | 0 | 0 | 0 | 5 | 14 | 16 |
The best time to visit Hetejärvi during the most sunny months:
Months with the longest average daylight duration in Hetejärvi:
The largest precipitation sum in Hetejärvi is at