Alterswil is a city of approximately 1,900 people in Fribourg, Switzerland. Located in the Europe/Zurich time zone at 46.8°N latitude.
In 2025, Alterswil recorded an average annual temperature of 49°F. The hottest temperatures reached 90°F in August; the coolest were 14°F in November. Total precipitation for the year was 56 inches, with the wettest month being September. Snowfall for the year totaled approximately 5 inches.
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