UV Index
UV Index
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Today's UV index in Longyearbyen, Svalbard and Jan Mayen 
will be up to 0, indicating a low level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
Today, the UV index suggests low sun danger (0-2) in Longyearbyen, 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.
The UV index in Longyearbyen, Svalbard and Jan Mayen can be very high, especially in the summer months. This is due to the city's proximity to the North Pole and the long days of sunlight during this time.
The weather seasons in Longyearbyen are quite different from those in temperate climates. There is no real summer or winter, but rather a period of polar night from November to February, when the sun does not rise above the horizon, and a period of midnight sun from May to August, when the sun does not set below the horizon.
Longyearbyen is much colder than its neighboring countries in Europe, with temperatures that can drop below -20°C in the winter. Despite its location in the Arctic, the city experiences milder temperatures than other places at the same latitude, due to the Gulf Stream which brings warm water from the Atlantic to the shores of Svalbard.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Longyearbyen. It's designed to provide you with a better understanding of the yearly weather and sun exposure.