UV Index
UV Index
Today's UV index in Helsingfors, Finland 
will be up to 4.7, 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: 2025-05-21
With a UV index reaching up to 4.7 in Helsingfors, 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 Helsingfors, Finland, is usually low to moderate, reaching higher levels during the summer months from May to August. It rarely exceeds 6, with peak values typically around midday on sunny days.
Helsingfors has cold winters with snow from December to March and mild summers from June to August. Spring and autumn are short and cool. The city experiences long daylight hours in summer and very short days in winter.
Compared to other parts of Finland, Helsingfors has milder winters due to its coastal location. It is cooler and less rainy than southern Sweden but warmer than northern Finland. Neighboring countries like Estonia have similar weather but slightly warmer temperatures.
See the UV index hour by hour for Helsingfors, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.