About Jenaz, Grisons's Climate & Weather History

With a population of around 1,100, Jenaz sits in Grisons, Switzerland. The city operates in the Europe/Zurich time zone.

In 2025, Jenaz recorded an average annual temperature of 49°F. The hottest temperatures reached 89°F in June; the coolest were 9°F in January. Total precipitation for the year was 43 inches, with the wettest month being July. Snowfall for the year totaled approximately 28 inches.