Click on a day for an hourly weather forecast
The temperatures in Mulhouse in September are comfortable with low of 11°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Mulhouse 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 Mulhouse in September 2026.
If you’re planning to visit Mulhouse in the near future, we highly recommend that you review the 14 day weather forecast for Mulhouse before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -1° | 9 | 13 | 9 | 108 mm | Awful | Mulhouse in January |
| February | 7° / -1° | 9 | 12 | 8 | 96 mm | Awful | Mulhouse in February |
| March | 11° / 2° | 8 | 19 | 4 | 85 mm | Awful | Mulhouse in March |
| April | 16° / 5° | 6 | 23 | 1 | 89 mm | Good | Mulhouse in April |
| May | 19° / 8° | 9 | 22 | 0 | 156 mm | Ok | Mulhouse in May |
| June | 23° / 12° | 9 | 21 | 0 | 169 mm | Good | Mulhouse in June |
| July | 25° / 14° | 8 | 23 | 0 | 159 mm | Good | Mulhouse in July |
| August | 25° / 14° | 8 | 23 | 0 | 130 mm | Good | Mulhouse in August |
| September | 21° / 11° | 5 | 25 | 0 | 77 mm | Good | Mulhouse in September |
| October | 16° / 7° | 6 | 25 | 0 | 100 mm | Good | Mulhouse in October |
| November | 10° / 3° | 8 | 20 | 2 | 114 mm | Awful | Mulhouse in November |
| December | 6° / 0° | 12 | 13 | 6 | 140 mm | Awful | Mulhouse in December |