Click on a day for an hourly weather forecast
The temperatures in Schwarzwald in September are usually low and can range between 10°C and 18°C.
You can expect about 3 to 8 days of rain in Schwarzwald 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 Schwarzwald in September 2026.
If you’re planning to visit Schwarzwald in the near future, we highly recommend that you review the 14 day weather forecast for Schwarzwald before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 6 | 7 | 20 | 94 mm | Awful | Schwarzwald in January |
| February | 2° / -3° | 6 | 7 | 15 | 59 mm | Awful | Schwarzwald in February |
| March | 7° / 0° | 7 | 13 | 11 | 52 mm | Awful | Schwarzwald in March |
| April | 13° / 4° | 5 | 21 | 4 | 44 mm | Bad | Schwarzwald in April |
| May | 16° / 7° | 7 | 23 | 1 | 107 mm | Ok | Schwarzwald in May |
| June | 21° / 11° | 7 | 23 | 0 | 117 mm | Ok | Schwarzwald in June |
| July | 23° / 13° | 7 | 24 | 0 | 121 mm | Good | Schwarzwald in July |
| August | 23° / 13° | 6 | 26 | 0 | 102 mm | Perfect | Schwarzwald in August |
| September | 18° / 10° | 4 | 26 | 0 | 67 mm | Good | Schwarzwald in September |
| October | 12° / 5° | 6 | 23 | 2 | 59 mm | Bad | Schwarzwald in October |
| November | 7° / 2° | 5 | 17 | 8 | 63 mm | Bad | Schwarzwald in November |
| December | 3° / -2° | 8 | 7 | 16 | 86 mm | Awful | Schwarzwald in December |