With a population of around 5,500, Mysen sits in Ostfold, Norway. The city operates in the Europe/Oslo time zone.
In 2025, Mysen recorded an average annual temperature of 46°F. The hottest temperatures reached 84°F in July; the coolest were -4°F in January. Total precipitation for the year was 37 inches, with the wettest month being July. Snowfall for the year totaled approximately 11 inches.
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