The temperatures in Grisons in August are quite cold with temperatures between 5°C and 16°C, warm clothes are a must.
There’s going to be many days of rain during the month of August in Grisons.
Grisons should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Grisons in August 2026.
If you’re planning to visit Grisons in the near future, we highly recommend that you review the 14 day weather forecast for Grisons before you arrive.
Temperatures
16° / 5°
Rainy Days
19
Snowy Days
0
Dry Days
12
Rainfall
301
mm
Sun Hours
10.7
Hrs
