With a population of around 3,200, Safenwil sits in Aargau, Switzerland. The city operates in the Europe/Zurich time zone.
In 2025, Safenwil recorded an average annual temperature of 50°F. The hottest temperatures reached 93°F in August; the coolest were 19°F in November. Total precipitation for the year was 50 inches, with the wettest month being September. Snowfall for the year totaled approximately 5 inches.
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