The temperatures in Geiranger in September are quite cold with temperatures between 44°F and 55°F, warm clothes are a must.
You can expect rain for roughly half of the month of September in Geiranger. 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 Geiranger in September 2025.
If you’re planning to visit Geiranger in the near future, we highly recommend that you review the 14 day weather forecast for Geiranger before you arrive.
Temperatures
55° / 44°
Rainy Days
13
Snowy Days
0
Dry Days
17
Rainfall
9.41
in
Sun Hours
7.5
Hrs
