Average annual temperature is 4.8 °C
Absolute maximum temperature: 28.6 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 126 days
Number of rainy days: 168 days
Number of snow days: 71 days
Look at detailed online map of Heinänen
* Weather data for Heinänen 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) | 2.7 | 4.6 | 4.4 | 15.3 | 21.9 | 28.5 | 24.3 | 28.6 | 21.5 | 12.7 | 5.5 | 3.4 |
| Average daytime temperature (°C) | -1.5 | -1.5 | -0.6 | 8.4 | 14.7 | 20.5 | 19.7 | 19.7 | 16.9 | 4.5 | -1.3 | -4.5 |
| Average temperature (°C) | -3.0 | -3.9 | -4.0 | 2.3 | 9.7 | 15.7 | 16.3 | 16.5 | 13.9 | 2.2 | -2.8 | -6.2 |
| Average night temperature (°C) | -5.0 | -7.2 | -7.9 | -3.0 | 4.1 | 10.0 | 12.7 | 13.2 | 10.9 | -0.1 | -4.4 | -8.2 |
| Absolute minimum temperature (°C) | -13.6 | -18.3 | -16.0 | -11.1 | -3.0 | 1.1 | 10.9 | 9.3 | 5.5 | -6.8 | -15.5 | -13.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.0 | 10.0 | 13.0 | 16.0 | 19.0 | 19.0 | 19.0 | 17.0 | 14.0 | 11.0 | 8.0 | 5.0 |
| Daylight mean duration (h) | 6.2 | 8.9 | 11.8 | 14.8 | 17.8 | 19.6 | 18.7 | 15.9 | 13.0 | 10.0 | 7.1 | 5.3 |
| Daylight minimum duration (h) | 5.0 | 7.0 | 10.0 | 13.0 | 16.0 | 19.0 | 17.0 | 14.0 | 11.0 | 8.0 | 5.0 | 5.0 |
| Sunshine mean duration (h) | 0.5 | 2.3 | 4.9 | 10.5 | 11.8 | 14.1 | 11.2 | 9.3 | 6.2 | 3.9 | 0.0 | 0.2 |
| Precipitation (mm) | 67 | 27 | 71 | 29 | 39 | 43 | 172 | 157 | 114 | 82 | 66 | 42 |
| Sunny days | 7 | 15 | 10 | 21 | 15 | 15 | 4 | 6 | 8 | 13 | 5 | 7 |
| Rainy days | 11 | 1 | 8 | 9 | 15 | 15 | 27 | 25 | 22 | 15 | 15 | 5 |
| Snow days | 13 | 12 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 10 | 19 |
The best time to visit Heinänen during the most sunny months:
Months with the longest average daylight duration in Heinänen:
The largest precipitation sum in Heinänen is at