Click on a day for an hourly weather forecast
The temperatures in Haderslev in September are usually low and can range between 11°C and 17°C.
You can expect about 3 to 8 days of rain in Haderslev 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 Haderslev in September 2025.
If you’re planning to visit Haderslev in the near future, we highly recommend that you review the 14 day weather forecast for Haderslev before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / 0° | 10 | 11 | 9 | 99 mm | Awful | Haderslev in January |
| February | 4° / 0° | 10 | 8 | 10 | 86 mm | Awful | Haderslev in February |
| March | 7° / 2° | 8 | 19 | 5 | 76 mm | Awful | Haderslev in March |
| April | 12° / 4° | 5 | 23 | 2 | 49 mm | Bad | Haderslev in April |
| May | 15° / 7° | 6 | 25 | 0 | 79 mm | Good | Haderslev in May |
| June | 19° / 10° | 5 | 25 | 0 | 84 mm | Good | Haderslev in June |
| July | 21° / 13° | 7 | 24 | 0 | 110 mm | Ok | Haderslev in July |
| August | 20° / 14° | 7 | 24 | 0 | 123 mm | Ok | Haderslev in August |
| September | 17° / 11° | 6 | 24 | 0 | 92 mm | Good | Haderslev in September |
| October | 13° / 8° | 8 | 23 | 0 | 101 mm | Bad | Haderslev in October |
| November | 8° / 5° | 10 | 18 | 2 | 101 mm | Awful | Haderslev in November |
| December | 5° / 2° | 11 | 14 | 6 | 111 mm | Awful | Haderslev in December |