UV Index
UV Index
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Today's UV index in Luxembourg, 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 Luxembourg, 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 Luxembourg, Luxembourg typically ranges from low to high, with values rarely exceeding 8. This varies throughout the year, with higher readings during summer months.
Luxembourg experiences four distinct seasons. Spring brings mild temperatures and blooming flowers, while summer is generally warm and sometimes humid, with temperatures reaching up to 30°C. Autumn sees a cooling trend, with beautiful fall foliage. Winter is often cold and cloudy, with occasional snowfall.
Compared to its region and neighboring countries, Luxembourg's weather patterns are somewhat similar to that of Germany, France, and Belgium. However, Luxembourg tends to be slightly cooler in the summer and milder in the winter. Its location in a valley can lead to more variable temperature extremes compared to surrounding areas.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Luxembourg. It's designed to provide you with a better understanding of the yearly weather and sun exposure.