About Grachen, Valais's Climate & Weather History

With a population of around 1,400, Grachen sits in Valais, Switzerland. The city operates in the Europe/Zurich time zone.

In 2025, Grachen recorded an average annual temperature of 42°F. The hottest temperatures reached 87°F in June; the coolest were 1°F in November. Total precipitation for the year was 50 inches, with the wettest month being April. Snowfall for the year totaled approximately 71 inches.