About Sassenage, Rhone Alpes's Climate & Weather History

With a population of around 10,600, Sassenage sits in Rhone-Alpes, France. The city operates in the Central European time zone.

In 2025, Sassenage recorded an average annual temperature of 56°F. The hottest temperatures reached 99°F in August; the coolest were 22°F in November. Total precipitation for the year was 58 inches, with the wettest month being September. Snowfall for the year totaled approximately 10 inches.