Sumiswald, in Bern, Switzerland, is home to roughly 5,200 people in the Europe/Zurich time zone at 47°N latitude.
In 2025, Sumiswald recorded an average annual temperature of 48°F. The hottest temperatures reached 88°F in August; the coolest were 11°F in November. Total precipitation for the year was 56 inches, with the wettest month being September. Snowfall for the year totaled approximately 10 inches.
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