Click on a day for an hourly weather forecast
The temperatures in Dessau in September are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Dessau 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 Dessau in September 2026.
If you’re planning to visit Dessau in the near future, we highly recommend that you review the 14 day weather forecast for Dessau before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -2° | 6 | 13 | 12 | 48 mm | Awful | Dessau in January |
| February | 5° / -1° | 6 | 14 | 8 | 31 mm | Awful | Dessau in February |
| March | 9° / 2° | 5 | 22 | 4 | 37 mm | Bad | Dessau in March |
| April | 15° / 5° | 3 | 25 | 1 | 30 mm | Good | Dessau in April |
| May | 18° / 8° | 5 | 26 | 0 | 68 mm | Good | Dessau in May |
| June | 23° / 12° | 4 | 26 | 0 | 72 mm | Perfect | Dessau in June |
| July | 25° / 14° | 5 | 27 | 0 | 83 mm | Perfect | Dessau in July |
| August | 25° / 15° | 4 | 27 | 0 | 67 mm | Perfect | Dessau in August |
| September | 20° / 11° | 3 | 27 | 0 | 48 mm | Good | Dessau in September |
| October | 15° / 7° | 5 | 26 | 0 | 43 mm | Good | Dessau in October |
| November | 9° / 4° | 5 | 24 | 2 | 42 mm | Bad | Dessau in November |
| December | 5° / 0° | 6 | 18 | 7 | 46 mm | Awful | Dessau in December |