UV Index
Köln UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index4.6
- Avg Clouds10%
- Max Temp23.4 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Köln, Germany 
will reach a high of 4.6 today. This means a moderate level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-18
Hourly Forecast Chart
Today's Safety Tips
The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.
Köln's UV Index
Köln's UV index is generally moderate, ranging from low in winter to moderate or high in summer, peaking during clear, sunny days. UV levels can occasionally reach around 7 during the hottest months. Seasonally, Köln experiences cool winters with occasional frost and snow, mild springs with increasing sunshine, warm summers often reaching 25-30°C, and colorful, crisp autumns with variable rainfall. Compared to nearby cities like Düsseldorf or Bonn, Köln's weather is quite similar, with slightly more rainfall than eastern Germany but less than coastal northern Germany. Neighboring countries like the Netherlands and Belgium share comparable temperate climates.
Hourly UV Index Trend
See the UV index hour by hour for Köln. When the level is high, it's smart to find some shade.
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