UV Index
UV Index
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Today's UV index in Leuven, Belgium 
will be up to 4, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4 in Leuven, 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 Leuven, Belgium, averages 3 in summer, considered low, and 1 in winter, indicating little to no UV exposure.
Leuven has four distinct seasons. Spring and autumn are mild, while winters are chilly with occasional snowfall and summers are warm but not hot.
Compared to its region and neighboring countries, Leuven is relatively moderate in temperature. Its rainfall is higher than some neighboring countries, but lower than parts of its own region, like the coast.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Leuven. It's designed to provide you with a better understanding of the yearly weather and sun exposure.