UV Index
UV Index
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Today's UV index in Vienna, Austria 
will be up to 4.8, 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 4.8 in Vienna, 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 Vienna, Austria, can reach high levels during the summer months, with a maximum index of 8. In winter, the UV index is usually low, rarely exceeding 2.
Vienna has four distinct seasons. Spring is mild and wet, while summer is warm and sometimes humid, with occasional thunderstorms. Autumn is crisp and cool, with beautiful foliage. Winter is cold, often snowy, and brings a magical atmosphere to the city.
Compared to its region and neighboring countries, Vienna is generally cooler and wetter than many parts of Central Europe. Summers are milder than in Southern and Eastern Europe, and winters are colder than in Western Europe. However, Vienna still enjoys a moderate climate overall.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Vienna. It's designed to provide you with a better understanding of the yearly weather and sun exposure.