UV Index
UV Index
Today's UV index in Keulendam, Belgium 
will be up to 5.9, 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: 2025-06-01
With a UV index reaching up to 5.9 in Keulendam, 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 Keulendam, Belgium, varies throughout the year, typically ranging from low in winter to moderate or high during summer months, peaking around midday. The highest UV readings occur in June and July.
Keulendam experiences mild summers and cool winters with regular rainfall year-round. Spring and autumn bring a mix of sunny and rainy days, while winter can be chilly with occasional frost and rare snow. Summer days are generally pleasant but not very hot.
Compared to other parts of Belgium and neighboring countries like the Netherlands and Germany, Keulendam’s weather is typical for the region. It has similar temperatures and rainfall, with no extreme weather patterns, making it a moderate climate zone in Western Europe.
See the UV index hour by hour for Keulendam, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.