Click on a day for an hourly weather forecast
The temperatures in Weimar in September are usually low and can range between 10°C and 20°C.
You can expect about 3 to 8 days of rain in Weimar 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 Weimar in September 2026.
If you’re planning to visit Weimar in the near future, we highly recommend that you review the 14 day weather forecast for Weimar before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -2° | 6 | 12 | 14 | 55 mm | Awful | Weimar in January |
| February | 4° / -2° | 6 | 12 | 10 | 41 mm | Awful | Weimar in February |
| March | 9° / 1° | 6 | 19 | 6 | 44 mm | Bad | Weimar in March |
| April | 14° / 4° | 4 | 23 | 2 | 42 mm | Ok | Weimar in April |
| May | 18° / 7° | 7 | 24 | 0 | 103 mm | Ok | Weimar in May |
| June | 22° / 11° | 7 | 23 | 0 | 110 mm | Ok | Weimar in June |
| July | 24° / 13° | 5 | 26 | 0 | 103 mm | Perfect | Weimar in July |
| August | 24° / 13° | 4 | 27 | 0 | 88 mm | Perfect | Weimar in August |
| September | 20° / 10° | 4 | 26 | 0 | 68 mm | Good | Weimar in September |
| October | 14° / 6° | 5 | 25 | 0 | 59 mm | Good | Weimar in October |
| November | 8° / 3° | 6 | 21 | 3 | 54 mm | Bad | Weimar in November |
| December | 4° / 0° | 7 | 17 | 8 | 56 mm | Awful | Weimar in December |