The temperatures in Chiemsee in September are quite cold with temperatures between 7°C and 19°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Chiemsee. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Chiemsee in September 2026.
If you’re planning to visit Chiemsee in the near future, we highly recommend that you review the 14 day weather forecast for Chiemsee before you arrive.
Temperatures
19° / 7°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
142
mm
Sun Hours
10.1
Hrs
