UV Index
UV Index
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Today's UV index in Tromsø, Norway 
will be up to 0, indicating low risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.
Today, the UV index suggests low sun danger (0-2) in Tromsø, reaching up to 0. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Tromsø.
The UV index in Tromsø, Norway, varies throughout the year. In summer (June-August), the UV index can reach high levels, averaging around 5-7. This indicates moderate to high risk of harm from unprotected sun exposure. In winter (December-February), the UV index remains low, typically ranging from 0-1, posing minimal risk for sunburn.
Tromsø experiences distinct weather seasons throughout the year. Summer brings a mild climate, with temperatures averaging around 8-15 °C (46-59 °F). Autumn (September-November) brings cooler temperatures, ranging from 3-10 °C (37-50 °F), with increasing rainfall. Winter is the coldest season, with temperatures ranging from -4 to -11 °C (24-12 °F), accompanied by snowfall. Spring (March-May) sees milder temperatures returning, ranging from -2 to 4 °C (28-39 °F), with varying amounts of sunshine.
Compared to other regions, Tromsø has relatively short daylight hours in winter, with polar nights lasting between November and January. Conversely, during summer, Tromsø experiences the midnight sun from late May to mid-July. The extended daylight hours during this period provide an opportunity to enjoy outdoor activities even late at night. However, the high latitude of Tromsø results in increased sunlight exposure in the summer, making it essential to protect skin from harmful UV rays.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Tromsø. It's designed to provide you with a better understanding of the yearly weather and sun exposure.