UV index in Tromsø today
UV values are based on open forecast data from the Norwegian Meteorological Institute and may represent clear-sky estimates. Actual UV levels may vary with clouds, reflection, altitude and local conditions.
Hourly forecast
UV index for the next hours. Values are based on open forecast data from the Norwegian Meteorological Institute and may represent clear-sky estimates.
Daily forecast
Highest UV index per day for the next few days.
- Tue07 JulUV 0.1low
- Wed08 JulUV 3.7moderate
- Thu09 JulUV 3.7moderate
- Fri10 JulUV 0.0low
Sun protection guidance
Based on the expected UV peak in the forecast (moderat, UV 3–5). Sun protection is generally recommended from UV index 3 and above. A typical approach combines sunscreen, clothing, sunglasses, a hat and shade.
About UV in Tromsø
UV exposure varies with time of day, altitude, cloud cover and reflection from snow, water and bright sand. UV radiation in Norway is typically strongest between 12:00 and 15:00 local time. The Norwegian Meteorological Institute updates the forecast regularly, and UVindex.no fetches new data every 30 minutes.
Frequently asked questions
What is the UV index in Tromsø today?
Today’s UV index in Tromsø is shown at the top of this page using forecast data from the Norwegian Meteorological Institute.
Is the UV index high in Tromsø?
Tromsø is well north of the Arctic Circle, so the sun stays low in the sky for much of the year. In summer, however, the midnight sun produces continuous daylight, and snow reflection in spring can lead to significant UV exposure.
Do I need sun protection for Northern Lights trips?
The Northern Lights season runs through the polar night, when there is little or no direct sunlight, so UV exposure is typically very low. The picture is different in spring and summer, when long daylight hours and snow reflection can push UV higher.
Is UV reflected from snow in the Arctic?
Yes. Snow reflects a large share of UV radiation. In spring, when sunlight returns and snow still covers the ground, UV exposure can be higher than the air temperature suggests.
UVindex.no provides general UV and sun-protection information. It is not medical advice. For specific health questions, consult a qualified healthcare professional.