Click on a day for an hourly weather forecast
The temperatures in Sunne in September are usually low and can range between 10°C and 14°C.
You can expect about 3 to 8 days of rain in Sunne 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 Sunne in September 2025.
If you’re planning to visit Sunne in the near future, we highly recommend that you review the 14 day weather forecast for Sunne before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -5° | 4 | 10 | 17 | 74 mm | Awful | Sunne in January |
| February | -2° / -5° | 5 | 9 | 15 | 55 mm | Awful | Sunne in February |
| March | 1° / -3° | 5 | 13 | 14 | 42 mm | Awful | Sunne in March |
| April | 5° / 1° | 4 | 21 | 5 | 35 mm | Awful | Sunne in April |
| May | 10° / 5° | 4 | 26 | 1 | 48 mm | Ok | Sunne in May |
| June | 15° / 10° | 4 | 26 | 0 | 40 mm | Good | Sunne in June |
| July | 18° / 13° | 5 | 26 | 0 | 67 mm | Good | Sunne in July |
| August | 18° / 13° | 4 | 27 | 0 | 73 mm | Good | Sunne in August |
| September | 14° / 10° | 5 | 25 | 0 | 59 mm | Good | Sunne in September |
| October | 8° / 5° | 6 | 24 | 2 | 66 mm | Bad | Sunne in October |
| November | 3° / 1° | 6 | 18 | 6 | 55 mm | Awful | Sunne in November |
| December | 0° / -2° | 5 | 12 | 14 | 79 mm | Awful | Sunne in December |