UV Index
UV Index
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Today's UV index in Wiltz, Luxembourg 
will be up to 4.2, 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 4.2 in Wiltz, 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 Wiltz, Luxembourg can reach high levels during the summer months, with a maximum index of 8. However, in the winter, the UV index is usually very low, rarely exceeding 1.
Wiltz experiences four distinct seasons. Spring brings mild temperatures and occasional rain, while summer is typically warm with periods of hot weather. Autumn is characterized by cooler temperatures and colorful foliage, and winter is cold with potential snowfall.
Compared to its region and neighboring countries, Wiltz has a more moderate climate. It is generally milder than nearby Germany and Belgium, which can experience more extreme temperatures and weather conditions. The climate in Wiltz is influenced by its location in a valley, which can lead to unique weather patterns.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Wiltz. It's designed to provide you with a better understanding of the yearly weather and sun exposure.