The weather in Disentis in September is very cold with temperatures between 3°C and 14°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Disentis. 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 Disentis can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Disentis in September 2026.
If you’re planning to visit Disentis in the near future, we highly recommend that you review the 14 day weather forecast for Disentis before you arrive.
Temperatures
14° / 3°
Rainy Days
14
Snowy Days
1
Dry Days
15
Rainfall
224
mm
Sun Hours
9.7
Hrs
