UV Index
UV Index
Today's UV index in Oslo, Norway 
will be up to 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: 2025-05-09
With a UV index reaching up to 4 in Oslo, 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.
Oslo's UV index varies, reaching moderate levels around 4 to 6 during summer months. In winter, the UV index drops close to zero due to limited sunlight. Spring and autumn have low to moderate UV levels.
Seasons in Oslo show cold, snowy winters with temperatures often below freezing, mild springs, warm summers with temperatures around 20-25°C, and cool, rainy autumns. Snow usually melts by April, and the warmest months are June through August.
Compared to other parts of Norway, Oslo is milder in winter due to its southern location. It has more sunshine than northern Norway but less than southern European countries like Sweden and Denmark, which have slightly warmer and sunnier summers.
See the UV index hour by hour for Oslo, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.