Castel San Pietro is a city of approximately 2,200 people in Ticino, Switzerland. Located in the Europe/Zurich time zone at 45.9°N latitude.
In 2025, Castel San Pietro averaged an annual temperature of 54°F, with hottest temperatures reaching 91°F in June and lowest around 25°F in January. The city received approximately 87 inches of precipitation during the year.
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