The temperatures in Dornbirn in September are quite cold with temperatures between 6°C and 16°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Dornbirn. 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.
Please note that Dornbirn can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Dornbirn in September 2025.
If you’re planning to visit Dornbirn in the near future, we highly recommend that you review the 14 day weather forecast for Dornbirn before you arrive.
Temperatures
16° / 6°
Rainy Days
9
Snowy Days
1
Dry Days
19
Rainfall
174
mm
Sun Hours
10.6
Hrs
