Click on a day for an hourly weather forecast
The temperatures in Bielefeld in September are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Bielefeld 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 Bielefeld in September 2025.
If you’re planning to visit Bielefeld in the near future, we highly recommend that you review the 14 day weather forecast for Bielefeld before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / 0° | 10 | 11 | 10 | 104 mm | Awful | Bielefeld in January |
| February | 5° / 0° | 7 | 12 | 9 | 83 mm | Awful | Bielefeld in February |
| March | 9° / 2° | 8 | 19 | 5 | 77 mm | Awful | Bielefeld in March |
| April | 14° / 5° | 5 | 23 | 2 | 53 mm | Ok | Bielefeld in April |
| May | 17° / 8° | 7 | 24 | 0 | 98 mm | Ok | Bielefeld in May |
| June | 21° / 11° | 7 | 23 | 0 | 104 mm | Ok | Bielefeld in June |
| July | 23° / 14° | 7 | 24 | 0 | 126 mm | Good | Bielefeld in July |
| August | 23° / 14° | 5 | 26 | 0 | 98 mm | Perfect | Bielefeld in August |
| September | 19° / 11° | 4 | 26 | 0 | 68 mm | Good | Bielefeld in September |
| October | 14° / 7° | 6 | 25 | 0 | 86 mm | Good | Bielefeld in October |
| November | 9° / 4° | 7 | 21 | 2 | 77 mm | Awful | Bielefeld in November |
| December | 5° / 1° | 9 | 15 | 7 | 101 mm | Awful | Bielefeld in December |