UV Index
UV Index
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Today's UV index in Lausanne, Switzerland 
will be up to 3.7, 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 3.7 in Lausanne, 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 Lausanne, Switzerland, averages a moderate 4-6 in the summer months. In winter, the index drops to 1-2, making sunscreen less essential.
Lausanne has four distinct seasons. Spring brings mild temperatures and blooming flowers, while summer sees warm weather and occasional thunderstorms. Autumn offers crisp air and colorful foliage, followed by cold, snowy winters.
Lausanne's weather is milder than nearby alpine regions, yet snowfall is still common in winter. Compared to its neighboring countries, Lausanne's climate is less extreme than France's or Italy's, but shares similar seasonal patterns with other Swiss cities.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Lausanne. It's designed to provide you with a better understanding of the yearly weather and sun exposure.