UV Index
UV Index
Today's UV index in Cologne, Germany 
will be up to 6.4, 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 Cologne's UV index reaching 6.4, 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.
Cologne's UV index is generally moderate, ranging from low in winter months to moderate during summer, rarely reaching very high levels. It means the sun's ultraviolet rays are not extremely strong most of the year.
Cologne experiences four distinct seasons: cold winters with occasional snow, mild springs with blooming flowers, warm summers with moderate rainfall, and cool, colorful autumns. Rain is spread fairly evenly throughout the year, so wet days happen often.
Compared to other parts of Germany, Cologne is wetter and milder, especially in winter. It is usually warmer than northern Germany but cooler than southern regions like Bavaria. Neighboring countries like the Netherlands and Belgium have similar weather patterns.
See the UV index hour by hour for Cologne, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.