UV Index
UV Index
Today's UV index in Mainz, Germany 
will be up to 6, 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: 2025-07-12
With Mainz's UV index reaching 6, 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.
Mainz often has a UV index ranging from low to moderate, usually between 1 and 6 throughout the year, with higher values in summer months, especially June and July. UV levels drop in winter, typically below 2.
Seasonally, Mainz experiences cold winters with temperatures near freezing and occasional snow. Summers are warm and sometimes humid, with temperatures often reaching 25°C to 30°C. Spring and autumn are mild and can be rainy.
Compared to the wider Rhineland-Palatinate region, Mainz has similar weather but tends to be slightly warmer due to its lower elevation. Neighboring countries like France and Luxembourg show comparable seasonal patterns, though France’s southern areas are generally warmer.
See the UV index hour by hour for Mainz, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.