Click on a day for an hourly weather forecast
The temperatures in Lahr 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 Lahr 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 Lahr in September 2026.
If you’re planning to visit Lahr in the near future, we highly recommend that you review the 14 day weather forecast for Lahr before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -1° | 11 | 17 | 3 | 86 mm | Awful | Lahr in January |
| February | 7° / -1° | 8 | 18 | 2 | 66 mm | Awful | Lahr in February |
| March | 11° / 2° | 6 | 23 | 1 | 63 mm | Ok | Lahr in March |
| April | 16° / 5° | 7 | 23 | 0 | 64 mm | Ok | Lahr in April |
| May | 19° / 8° | 9 | 22 | 0 | 94 mm | Ok | Lahr in May |
| June | 24° / 12° | 8 | 22 | 0 | 79 mm | Good | Lahr in June |
| July | 25° / 14° | 8 | 23 | 0 | 85 mm | Good | Lahr in July |
| August | 25° / 14° | 8 | 23 | 0 | 69 mm | Good | Lahr in August |
| September | 21° / 11° | 7 | 24 | 0 | 59 mm | Ok | Lahr in September |
| October | 16° / 7° | 7 | 24 | 0 | 67 mm | Ok | Lahr in October |
| November | 10° / 3° | 7 | 23 | 0 | 75 mm | Bad | Lahr in November |
| December | 6° / 1° | 11 | 17 | 3 | 99 mm | Awful | Lahr in December |