UV Index
UV Index
Today's UV index in Longyearbyen, Svalbard and Jan Mayen 
will be up to 2.1, indicating a low level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-10
Today, the UV index suggests low sun danger (0-2) in Longyearbyen, reaching up to 2.1. Remember sunglasses and SPF 30+ sunscreen on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Longyearbyen, Svalbard, has a low to moderate UV index, usually ranging from 0 to 3, peaking in late spring and summer months. Jan Mayen experiences a slightly higher UV index, generally between 1 and 4 during summer.
In Longyearbyen, winters are very cold and dark with temperatures often below freezing, while summers are cool and have continuous daylight. Jan Mayen has cold, windy winters and cool summers with more variable weather due to ocean influence and more frequent fog.
Compared to mainland Norway, both locations are colder and have harsher winters. Jan Mayen is wetter and windier than Longyearbyen, and both places experience more extreme polar conditions than neighboring countries like Iceland, which have milder climates.
See the UV index hour by hour for Longyearbyen, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.