UV Index
UV Index
Today's UV index in Klagenfurt, Austria 
will be up to 7.8, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-01
With Klagenfurt's UV index reaching 7.8, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Klagenfurt's UV index varies seasonally, typically lower in winter around 1-2 and higher in summer, reaching up to 7-8 during midday. Spring and autumn have moderate UV levels near 3-5.
Klagenfurt experiences warm summers and cold winters. Summer temperatures average around 20-25°C with occasional heatwaves. Winters can drop below freezing, often with snow. Spring and autumn are mild with changing weather and rainfall.
Compared to other parts of Austria, Klagenfurt is slightly warmer and sunnier due to its southern location. It has a milder climate than mountainous regions like Innsbruck. Compared to neighboring Slovenia, Klagenfurt is cooler in winter but shares similar summer warmth.
See the UV index hour by hour for Klagenfurt, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.