UV Index
UV Index
Today's UV index in Luzern, Switzerland 
will be up to 6.2, 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: 2025-05-21
With Luzern's UV index reaching 6.2, 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.
Luzern's UV index ranges from low in winter to moderate or high during summer months, peaking around midday in June and July. Seasonal changes affect UV exposure significantly. The city experiences four distinct seasons with moderate rainfall. Winters are cold with some snowfall, springs and autumns are mild with variable weather, and summers are warm and sometimes humid. Compared to surrounding regions, Luzern has a slightly milder climate than high Alpine areas but cooler and wetter conditions than lower Swiss plains. Neighboring countries like Germany and Italy show more variation, with Italy being warmer and Germany having more continental climate influences.
See the UV index hour by hour for Luzern, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.