UV Index
UV Index
Today's UV index in Fredrikstad, Norway 
will be up to 4.1, 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: 2025-05-10
With a UV index reaching up to 4.1 in Fredrikstad, 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 Fredrikstad, Norway, is generally low to moderate, reaching higher levels in late spring and summer, typically around 3 to 6 during peak daylight hours.
Fredrikstad has cold winters with snow and ice, mild to warm summers, and noticeable seasonal changes. Winter lasts from December to February, while summer is from June to August with longer daylight.
Compared to other parts of Norway, Fredrikstad's weather is milder because it is in the southeastern region. It is warmer than northern Norway but cooler and less rainy than some areas of southwestern Norway. Neighboring Sweden has similar seasonal patterns but can be drier.
See the UV index hour by hour for Fredrikstad, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.