UV Index in Koblenz, Germany

Last updated: June 2, 2025

In Koblenz, Germany, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn, especially during the sunnier months. The UV Index indicates the strength of sun's ultraviolet radiation, reaching its peak around midday when values can soar as high as 8—a significant level that calls for protective measures. Understanding these UV levels is essential for anyone seeking to enjoy Koblenz's scenic outdoor attractions while safeguarding their skin. With a temperate oceanic climate typical of the region, residents and visitors alike must remain vigilant about UV exposure during the day to ensure their time in the sun is both enjoyable and safe.

Hourly UV Index in Koblenz

The UV Index fluctuates throughout the day, reaching its peak of 8 between noon and 2 PM. Early risers will notice a gentle start, with levels at just 1 at 7 AM. As the sun climbs higher, the index rises steadily, hitting 5 by 10 AM and 6 by 11 AM. By 12 PM, the intensity peaks, prompting caution for those outdoors. After this midday surge, the index begins a gradual decline, dropping to 7 at 3 PM, and falling further to 4 by 5 PM. As evening approaches, UV levels decrease significantly, resting at 1 by 7 PM. It’s a clear reminder to stay sun-safe during those peak hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:003moderate30 min
10:005moderate30 min
11:006high25 min
12:008very high15 min
13:008very high15 min
14:008very high15 min
15:007high25 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Koblenz

During the year, UV exposure varies significantly, with the highest risk months being May through August. In May, the UV Index rises to 7 (high), followed by 8 (very high) in June and July, and dropping back to 7 in August. Residents and visitors are advised to be particularly cautious during these months, limiting sun exposure, especially during peak hours, and applying sunscreen regularly. Conversely, from January to April and in September to December, UV levels are generally lower, with the burn time gradually increasing, allowing for safer outdoor activities. It is important to adapt your sun protection measures according to these seasonal UV changes to ensure health and safety while enjoying the outdoors.

Monthly Maximum UV Index for Koblenz, Germany

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Koblenz. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Statistical UV Index data for Koblenz, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Koblenz UV Index with Other Germany Cities

The table above highlights how UV exposure in Koblenz compares to other major locations across Germany. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Koblenz's solar exposure compared to other cities in Germany. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Hamburg UVI123578775321
Berlin UVI124578775321
Koeln UVI124578875421
Koblenz234578875421
Frankfurt am Main UVI234588875421
Munich UVI235689986421