Click on a day for an hourly weather forecast
The temperatures in Lorrach in September are quite cold with temperatures between 9°C and 21°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Lorrach 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 Lorrach in September 2026.
If you’re planning to visit Lorrach in the near future, we highly recommend that you review the 14 day weather forecast for Lorrach before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -3° | 10 | 9 | 11 | 125 mm | Awful | Lorrach in January |
| February | 6° / -2° | 9 | 10 | 10 | 106 mm | Awful | Lorrach in February |
| March | 11° / 1° | 9 | 17 | 5 | 98 mm | Awful | Lorrach in March |
| April | 16° / 4° | 7 | 22 | 1 | 104 mm | Ok | Lorrach in April |
| May | 19° / 7° | 11 | 20 | 0 | 183 mm | Ok | Lorrach in May |
| June | 23° / 11° | 10 | 20 | 0 | 188 mm | Good | Lorrach in June |
| July | 25° / 13° | 8 | 23 | 0 | 179 mm | Good | Lorrach in July |
| August | 25° / 13° | 9 | 22 | 0 | 159 mm | Good | Lorrach in August |
| September | 21° / 9° | 6 | 24 | 0 | 96 mm | Good | Lorrach in September |
| October | 16° / 6° | 6 | 24 | 0 | 114 mm | Good | Lorrach in October |
| November | 10° / 2° | 8 | 19 | 3 | 126 mm | Awful | Lorrach in November |
| December | 6° / -1° | 11 | 12 | 8 | 157 mm | Awful | Lorrach in December |