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Bremen 
Weather in September 2025
The temperatures in Bremen 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 Bremen 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 Bremen in September 2025.
If you’re planning to visit Bremen in the near future, we highly recommend that you review the 14 day weather forecast for Bremen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / 0° | 8 | 15 | 8 | 64 mm | Awful | Bremen in January |
| February | 5° / 0° | 7 | 15 | 7 | 55 mm | Awful | Bremen in February |
| March | 9° / 2° | 6 | 22 | 3 | 49 mm | Bad | Bremen in March |
| April | 14° / 5° | 4 | 25 | 1 | 45 mm | Good | Bremen in April |
| May | 17° / 7° | 5 | 26 | 0 | 67 mm | Good | Bremen in May |
| June | 20° / 11° | 6 | 24 | 0 | 98 mm | Good | Bremen in June |
| July | 22° / 13° | 5 | 26 | 0 | 89 mm | Good | Bremen in July |
| August | 23° / 14° | 4 | 27 | 0 | 80 mm | Perfect | Bremen in August |
| September | 19° / 11° | 3 | 27 | 0 | 50 mm | Good | Bremen in September |
| October | 14° / 7° | 5 | 26 | 0 | 63 mm | Good | Bremen in October |
| November | 9° / 4° | 6 | 23 | 1 | 56 mm | Ok | Bremen in November |
| December | 5° / 1° | 7 | 19 | 5 | 60 mm | Awful | Bremen in December |