UV Index
UV Index
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Today's UV index in Genève, Switzerland 
will be up to 4.9, 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 4.9 in Genève, 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 Genève, Switzerland, can reach high levels during the summer months, with a maximum index of 8. This is due to the city's location in the northern hemisphere and its altitude of 373 meters above sea level. In the winter, the UV index is much lower, usually around 1 or 2.
Genève experiences four distinct seasons, each with its own unique weather patterns. Spring, from March to May, can be unpredictable, with temperatures ranging from cold to warm. Summer, from June to August, is usually warm and sunny, with occasional rain. Autumn, from September to November, sees temperatures begin to drop, with more frequent rainfall. Winter, from December to February, is cold and often snowy, with temperatures rarely rising above freezing.
Compared to its region and neighboring countries, Genève has a milder climate. Its location in the Rhône valley, sandwiched between the Jura mountains and Lake Geneva, provides some protection from extreme temperatures. In contrast, the nearby Alps see much colder temperatures and heavier snowfall. Neighboring countries such as Germany, France, and Italy also typically experience colder and snowier winters than Genève.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Genève. It's designed to provide you with a better understanding of the yearly weather and sun exposure.