The temperatures in Grenoble in August are comfortable with low of 12°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Grenoble during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Grenoble in August 2025.
If you’re planning to visit Grenoble in the near future, we highly recommend that you review the 14 day weather forecast for Grenoble before you arrive.
Temperatures
22° / 12°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
101
mm
Sun Hours
11.1
Hrs
