Click on a day for an hourly weather forecast
The temperatures in Rattvik in September are quite cold with temperatures between 6°C and 15°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Rattvik 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.
Our weather forecast can give you a great sense of what weather to expect in Rattvik in September 2026.
If you’re planning to visit Rattvik in the near future, we highly recommend that you review the 14 day weather forecast for Rattvik before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -8° | 5 | 8 | 18 | 61 mm | Awful | Rattvik in January |
| February | -2° / -8° | 4 | 7 | 18 | 49 mm | Awful | Rattvik in February |
| March | 2° / -5° | 6 | 10 | 16 | 48 mm | Awful | Rattvik in March |
| April | 8° / -1° | 5 | 18 | 7 | 48 mm | Bad | Rattvik in April |
| May | 15° / 4° | 7 | 23 | 2 | 89 mm | Bad | Rattvik in May |
| June | 19° / 8° | 6 | 24 | 0 | 107 mm | Good | Rattvik in June |
| July | 21° / 10° | 7 | 24 | 0 | 111 mm | Ok | Rattvik in July |
| August | 20° / 9° | 8 | 23 | 0 | 106 mm | Ok | Rattvik in August |
| September | 15° / 6° | 6 | 24 | 0 | 77 mm | Good | Rattvik in September |
| October | 8° / 2° | 7 | 21 | 2 | 86 mm | Awful | Rattvik in October |
| November | 3° / -1° | 7 | 16 | 7 | 71 mm | Awful | Rattvik in November |
| December | -2° / -6° | 5 | 9 | 17 | 60 mm | Awful | Rattvik in December |