VoyageFind your Grenoble season
Mild means an average daily high of 18–25°C (64–77°F), ranked by closeness to 21°C, then fewer wet days. This compares weather only, without assuming prices or crowd levels.
Grenoble
June
21° / 10°C
11.2 wet days · 65 mm
July
23° / 11°C
9.2 wet days · 56 mm
September
19° / 8°C
9.4 wet days · 67 mm
August
23° / 11°C
9.2 wet days · 58 mm
A consistent comparison.
All cities here use NASA POWER daily data for 2001–2020. Nearby cities may share a regional grid cell; small numerical differences are not a reason to choose one over another. Lisbon’s dedicated planner uses a separate IPMA station series, so its numbers can differ.
Data sources & methods