Overall on the next 14 days there will be 4 days with snow in Rjukan and a total of 5.9 cm of snow.
It will be snowy on the following days:
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Rjukan 
Weather in December 2025
Overall on the next 14 days there will be 4 days with snow in Rjukan and a total of 5.9 cm of snow.
It will be snowy on the following days:
The weather in Rjukan in December is very cold with temperatures between -9°C and -5°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Rjukan during the month of December. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Let it snow! You can expect Rjukan to be covered in white during the month of December. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Rjukan in December 2025.
If you’re planning to visit Rjukan in the near future, we highly recommend that you review the 14 day weather forecast for Rjukan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -6° / -12° | 3 | 9 | 20 | 89 mm | Awful | Rjukan in January |
| February | -5° / -11° | 3 | 5 | 20 | 81 mm | Awful | Rjukan in February |
| March | -2° / -9° | 5 | 8 | 19 | 75 mm | Awful | Rjukan in March |
| April | 2° / -5° | 6 | 11 | 14 | 55 mm | Awful | Rjukan in April |
| May | 8° / 1° | 7 | 15 | 8 | 96 mm | Awful | Rjukan in May |
| June | 14° / 6° | 8 | 21 | 1 | 121 mm | Ok | Rjukan in June |
| July | 16° / 7° | 10 | 21 | 0 | 134 mm | Ok | Rjukan in July |
| August | 14° / 6° | 9 | 22 | 0 | 120 mm | Ok | Rjukan in August |
| September | 10° / 3° | 7 | 22 | 1 | 105 mm | Bad | Rjukan in September |
| October | 4° / -1° | 7 | 12 | 13 | 125 mm | Awful | Rjukan in October |
| November | -2° / -5° | 5 | 7 | 19 | 124 mm | Awful | Rjukan in November |
| December | -5° / -9° | 5 | 6 | 20 | 108 mm | Awful | Rjukan in December |
