The temperatures in Heidenheim in September are usually low and can range between 10°C and 19°C.
You can expect about 3 to 8 days of rain in Heidenheim 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 Heidenheim in September 2026.
If you’re planning to visit Heidenheim in the near future, we highly recommend that you review the 14 day weather forecast for Heidenheim before you arrive.
Temperatures
19° / 10°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
84
mm
Sun Hours
6.5
Hrs
