UV Index
UV Index
Today's UV index in Oulu, Finland 
will be up to 4.4, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-07-21
With a UV index reaching up to 4.4 in Oulu, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Oulu, Finland, is generally low throughout the year, rarely exceeding 3, with the highest values occurring during late spring and early summer months around May and June.
Oulu experiences cold, snowy winters and mild summers. Winter temperatures often drop below freezing from November to March, while summer months from June to August are warmer, with temperatures reaching up to 20 degrees Celsius or more.
Compared to southern Finland and neighboring Sweden and Norway, Oulu is colder and snowier in winter due to its northern location. Its summers are cooler than southern areas but similar to other northern parts of the Nordic region.
See the UV index hour by hour for Oulu, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.