The temperatures in Altdorf 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 Altdorf 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 Altdorf in September 2024.
If you’re planning to visit Altdorf in the near future, we highly recommend that you review the 14 day weather forecast for Altdorf before you arrive.
Temperatures
19° / 10°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
97
mm
Sun Hours
6.6
Hrs