UV Index
UV Index
Today's UV index in Brussels, 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 Brussels, 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 Brussels is usually low to moderate throughout the year, rarely reaching very high levels. It tends to be higher during late spring and summer months and lower in fall and winter.
Brussels experiences four distinct seasons. Winters are cool and damp with temperatures often between 0°C and 7°C, while summers are mild and sometimes warm, typically around 18°C to 25°C. Rainfall is spread evenly year-round.
Compared to neighboring countries like France and Germany, Brussels has a similar mild climate but is generally wetter. Its weather is less extreme than southern Europe but more variable and cooler than coastal areas like the Netherlands.
See the UV index hour by hour for Brussels, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.