UV Index
UV Index
Today's UV index in St Petersburg, Russia 
will be up to 3.5, 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: 2025-05-08
With a UV index reaching up to 3.5 in St Petersburg, 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 St Petersburg is usually low to moderate, often ranging from 1 to 4, peaking in late spring and early summer but rarely reaching very high levels due to the northern location. The city has cold winters with snow, mild springs, cool summers with long daylight hours, and chilly autumns. Snow can last several months, and temperatures vary widely through the year. Compared to other parts of Russia, St Petersburg is milder than Siberia but colder than southern Russia. It has longer daylight than many places, especially in summer, and it is cooler and wetter than nearby countries like Estonia and Finland.
See the UV index hour by hour for St Petersburg, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.