With a population of around 9,000, Selfoss sits in South, Iceland. The city operates in the Atlantic/Reykjavik time zone.
In 2025, Selfoss recorded an average annual temperature of 43°F. The hottest temperatures reached 79°F in July; the coolest were 6°F in January. Total precipitation for the year was 73 inches, with the wettest month being January. Snowfall for the year totaled approximately 30 inches.
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