Average annual temperature is 2.6 °C
Absolute maximum temperature: 27.6 °C
Absolute minimum temperature: -23.6 °C
Number of sunny days: 130 days
Number of rainy days: 145 days
Number of snow days: 90 days
Look at detailed online map of Rahko
* Weather data for Rahko 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) | 4.7 | 2.5 | 0.8 | 11.4 | 22.7 | 25.0 | 24.5 | 27.6 | 20.4 | 9.5 | 2.1 | 1.2 |
| Average daytime temperature (°C) | -3.2 | -4.1 | -4.0 | 5.8 | 13.0 | 18.3 | 18.6 | 19.6 | 14.7 | 1.3 | -3.5 | -6.4 |
| Average temperature (°C) | -5.2 | -6.5 | -7.8 | 0.1 | 7.9 | 13.9 | 15.0 | 15.6 | 11.5 | -0.9 | -5.4 | -8.1 |
| Average night temperature (°C) | -7.2 | -9.0 | -11.7 | -5.2 | 1.7 | 8.5 | 10.5 | 11.0 | 8.2 | -3.3 | -7.6 | -10.3 |
| Absolute minimum temperature (°C) | -20.9 | -19.6 | -23.6 | -15.3 | -6.8 | 1.2 | 6.9 | 5.4 | -0.9 | -10.4 | -15.4 | -22.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 6.0 | 9.0 | 13.0 | 17.0 | 21.0 | 23.0 | 22.0 | 18.0 | 14.0 | 11.0 | 7.0 | 4.0 |
| Daylight mean duration (h) | 4.9 | 8.3 | 11.8 | 15.3 | 19.1 | 22.5 | 20.6 | 16.7 | 13.1 | 9.6 | 6.0 | 3.5 |
| Daylight minimum duration (h) | 3.0 | 6.0 | 10.0 | 13.0 | 17.0 | 21.0 | 18.0 | 14.0 | 11.0 | 7.0 | 4.0 | 3.0 |
| Sunshine mean duration (h) | 0.5 | 1.6 | 5.3 | 10.7 | 12.0 | 13.4 | 9.7 | 10.1 | 5.4 | 2.5 | 0.5 | 0.0 |
| Precipitation (mm) | 57 | 27 | 45 | 42 | 49 | 33 | 98 | 116 | 134 | 70 | 30 | 32 |
| Sunny days | 7 | 9 | 9 | 20 | 16 | 11 | 5 | 11 | 6 | 14 | 10 | 12 |
| Rainy days | 8 | 4 | 2 | 8 | 13 | 19 | 26 | 20 | 24 | 14 | 5 | 2 |
| Snow days | 16 | 15 | 20 | 2 | 2 | 0 | 0 | 0 | 0 | 3 | 15 | 17 |
The best time to visit Rahko during the most sunny months:
Months with the longest average daylight duration in Rahko:
The largest precipitation sum in Rahko is at