UV Index
UV Index
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Today's UV index in Biel/Bienne, Switzerland 
will be up to 5, 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 5 in Biel/Bienne, 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 Biel/Bienne, Switzerland can reach high levels during peak sunlight hours in the summer, with an average index of 5-7. In the winter, the UV index is much lower, usually around 1-3.
Biel/Bienne experiences four distinct seasons. Spring brings mild temperatures and blooming flowers, while summer is characterized by warm weather and long days. Autumn sees the leaves change color and cooler temperatures, and winter is often cold and snowy.
Compared to its region and neighboring countries, Biel/Bienne has a relatively mild climate. The city is located in the Swiss Plateau, which has a more temperate climate than the Swiss Alps. Nearby countries such as Germany and France also have similar temperate climates, but may have more extreme temperatures in the winter due to their more continental locations.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Biel/Bienne. It's designed to provide you with a better understanding of the yearly weather and sun exposure.