Today, the UV index suggests low sun danger (0-2) in Leuven, reaching up to 0.7. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Leuven.
The UV index in Leuven, Belgium, varies throughout the year. In the summer months, from June to August, the index can reach a high level of 6 to 7, which is considered moderate to high sun exposure. It is important to protect yourself from the sun by using sunscreen, wearing hats and sunglasses (UV index 8 to 10 has very high to extreme sun exposure).
Leuven experiences four distinct seasons: spring, summer, autumn, and winter. Spring (March to May) brings mild temperatures ranging from 5 °C (41 °F) to 15 °C (59 °F), with occasional rainfall. Summer (June to August) is warm, with temperatures averaging between 17 °C (63 °F) to 25 °C (77 °F), and more precipitation occurs. Autumn (September to November) brings cooler temperatures ranging from 7 °C (45 °F) to 15 °C (59 °F), with colorful foliage and some rainfall. Winter (December to February) is cold, with temperatures averaging from 1 °C (34 °F) to 6 °C (43 °F), and occasional snowfall.
Compared to its region, Leuven experiences a moderate amount of sun exposure. It receives about 1,500 to 1,600 hours of sunshine per year. However, neighboring cities like Brussels and Antwerp are slightly sunnier, with Brussels receiving around 1,700 hours of sunshine annually. It is important to note that despite the moderate sun exposure, it is still essential to take precautions against harmful UV rays to protect your skin and eyes.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Leuven. It's designed to provide you with a better understanding of the yearly weather and sun exposure.