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The weather in Rjukan in September is very cold with temperatures between 3°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Rjukan during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Rjukan can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Rjukan in September 2024.
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 |