UV Index
UV Index
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Today's UV index in Trondheim, Norway 
will be up to 0.1, 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 Trondheim, reaching up to 0.1. 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 Trondheim.
The UV index in Trondheim, Norway, tends to vary throughout the year. During summer (June-August), the UV index can reach high levels, ranging from 6 to 8 (moderate to very high), which means there is a moderate-to-high risk of harm from unprotected sun exposure. It is important to protect your skin during these months by using sunscreen, wearing hats, and seeking shade when the sun is strongest.
Trondheim experiences four distinct seasons: spring, summer, autumn, and winter. Spring (March-May) is characterized by gradually increasing temperatures, ranging from around 0 °C (32 °F) to 10 °C (50 °F), with occasional rainfall. Summer (June-August) brings milder temperatures ranging between 13 °C (55 °F) and 20 °C (68 °F), and it is generally the driest period. Autumn (September-November) sees temperatures drop, ranging from 5 °C (41 °F) to 11 °C (52 °F), and a return of rainfall. Winter (December-February) is cold, with temperatures dropping below freezing, often ranging from -5 °C (23 °F) to -10 °C (14 °F), and snow is common.
Compared to other regions in Norway, Trondheim generally receives less sun exposure. In the summer months, the region experiences long daylight hours due to its northern latitude. However, during winter, it receives limited sunlight, with short daylight hours. Overall, Trondheim's weather can be variable, but it offers a unique blend of seasons and natural beauty that is worth experiencing throughout the year.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Trondheim. It's designed to provide you with a better understanding of the yearly weather and sun exposure.