Average annual temperature is 5.3 °C
Absolute maximum temperature: 27.1 °C
Absolute minimum temperature: -16.9 °C
Number of sunny days: 119 days
Number of rainy days: 166 days
Number of snow days: 80 days
Look at detailed online map of Rjukan
* Weather data for Rjukan Norway is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.4 | 7.9 | 7.4 | 15.8 | 23.1 | 27.1 | 25.3 | 21.8 | 24.3 | 15.0 | 6.6 | 8.6 |
| Average daytime temperature (°C) | -0.2 | 3.5 | 0.9 | 7.0 | 13.2 | 21.9 | 17.9 | 17.7 | 16.9 | 6.8 | -0.3 | -2.0 |
| Average temperature (°C) | -2.3 | 0.5 | -2.5 | 3.1 | 8.5 | 17.1 | 14.6 | 14.3 | 13.2 | 4.3 | -2.4 | -4.6 |
| Average night temperature (°C) | -4.7 | -2.4 | -5.9 | -0.6 | 3.1 | 11.5 | 10.9 | 11.2 | 9.4 | 2.0 | -5.1 | -7.7 |
| Absolute minimum temperature (°C) | -14.5 | -8.5 | -14.7 | -8.1 | -2.8 | 3.9 | 8.6 | 8.5 | 3.8 | -2.6 | -16.9 | -14.9 |
| 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 | 18.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 6.9 | 9.2 | 11.8 | 14.6 | 17.1 | 18.7 | 17.9 | 15.6 | 12.9 | 10.2 | 7.6 | 6.1 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 | 5.0 |
| Sunshine mean duration (h) | 2.2 | 5.5 | 6.1 | 8.4 | 11.8 | 13.4 | 10.7 | 7.8 | 7.1 | 4.3 | 1.5 | 1.1 |
| Precipitation (mm) | 168 | 56 | 89 | 123 | 51 | 80 | 188 | 205 | 179 | 62 | 108 | 78 |
| Sunny days | 8 | 14 | 9 | 15 | 18 | 15 | 1 | 1 | 10 | 11 | 8 | 9 |
| Rainy days | 5 | 4 | 5 | 7 | 12 | 15 | 30 | 30 | 20 | 16 | 11 | 11 |
| Snow days | 18 | 10 | 17 | 8 | 1 | 0 | 0 | 0 | 0 | 4 | 11 | 11 |
The best time to visit Rjukan during the most sunny months:
Months with the longest average daylight duration in Rjukan:
The largest precipitation sum in Rjukan is at