UV Index
UV Index
Today's UV index in Saint Paul, United States 
will be up to 7.5, indicating a high 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 Saint Paul's UV index reaching 7.5, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Saint Paul often has a UV index that varies from low in winter to moderate or high in summer, reaching levels around 7 to 8 during the peak of summer months. UV levels tend to be lowest in December and January, then rise gradually in spring and peak by June.
The weather in Saint Paul changes with the seasons: cold and snowy winters with temperatures often below freezing, warm summers sometimes reaching into the 80s and 90s (°F), and mild springs and falls with moderate rainfall. Winters are long and cold, while summers are short but can be quite warm and humid.
Compared to other parts of the Midwest, Saint Paul has colder winters than cities further south. Neighboring Minneapolis has very similar weather since the two cities are close together. Compared to states further west or south, Saint Paul experiences more snowfall and colder winters.
See the UV index hour by hour for Saint Paul, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.