Click on a day for an hourly weather forecast
The weather in Roros 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 Roros 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.
You can expect a few days of snow in Roros during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore Roros.
Our weather forecast can give you a great sense of what weather to expect in Roros in September 2026.
If you’re planning to visit Roros in the near future, we highly recommend that you review the 14 day weather forecast for Roros before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -8° / -13° | 4 | 5 | 23 | 38 mm | Awful | Roros in January |
| February | -6° / -13° | 5 | 3 | 21 | 37 mm | Awful | Roros in February |
| March | -3° / -11° | 7 | 3 | 24 | 50 mm | Awful | Roros in March |
| April | 1° / -6° | 6 | 6 | 20 | 42 mm | Awful | Roros in April |
| May | 8° / 0° | 7 | 12 | 12 | 67 mm | Awful | Roros in May |
| June | 13° / 5° | 9 | 18 | 3 | 93 mm | Awful | Roros in June |
| July | 16° / 7° | 8 | 23 | 0 | 101 mm | Ok | Roros in July |
| August | 15° / 6° | 7 | 24 | 0 | 83 mm | Ok | Roros in August |
| September | 10° / 3° | 5 | 22 | 3 | 59 mm | Bad | Roros in September |
| October | 3° / -2° | 7 | 9 | 15 | 52 mm | Awful | Roros in October |
| November | -3° / -7° | 7 | 5 | 19 | 38 mm | Awful | Roros in November |
| December | -6° / -11° | 6 | 3 | 23 | 40 mm | Awful | Roros in December |