UV Index
UV Index
Today's UV index in Wiltz, Luxembourg 
will be up to 6.5, 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: 2025-06-01
With Wiltz's UV index reaching 6.5, 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.
Wiltz, Luxembourg typically experiences a UV index ranging from low to moderate throughout the year, with occasional peaks in summer months reaching moderate to high levels. UV exposure is generally lower in the cooler seasons.
Seasonal patterns in Wiltz show mild springs, warm summers, cool autumns, and cold winters. Summers have temperatures often between 20°C and 25°C, while winters can drop close to freezing with occasional snow. Rainfall is fairly evenly spread.
Compared to nearby regions, Wiltz's climate is similar to the rest of Luxembourg, with slightly cooler temperatures due to its elevation. It is generally milder than neighboring Belgium's Ardennes and less harsh than eastern parts of Germany.
See the UV index hour by hour for Wiltz, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.