The temperatures in Aix Les Bains in September are quite cold with temperatures between 9°C and 23°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Aix Les Bains 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 Aix Les Bains in September 2026.
If you’re planning to visit Aix Les Bains in the near future, we highly recommend that you review the 14 day weather forecast for Aix Les Bains before you arrive.
Temperatures
23° / 9°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
100
mm
Sun Hours
11.1
Hrs
