Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors of Obernau, Germany, as it provides crucial information about the strength of ultraviolet radiation and its potential impact on skin health. With UV levels reaching up to 7 during peak hours—especially in the warm months—awareness can significantly aid in sunburn prevention and reduce long-term skin damage. Obernau's Cfb climate typically offers a temperate environment, but that doesn't lessen the risk of high UV exposure, particularly from late morning to early afternoon. Equip yourself with the knowledge of UV Index levels to enjoy the sun safely while taking in the beauty of this charming town.
As the sun rises, the UV Index remains low, starting at 1 at 07:00 and 08:00, making it a gentle time to venture outdoors. By 09:00, it ramps up to 3, signaling the beginning of the day’s peak sun exposure. 10:00 sees a rise to 4, and things heat up significantly by 11:00 with a UV Index of 5. The highest point peaks at 12:00, 13:00, and 14:00 with a striking 7, urging everyone to take precautions. As the afternoon progresses, the UV Index gradually declines to 6 by 15:00, and continues to drop to 3 by 17:00. Finally, it winds down for the evening, returning to 2 at 18:00 and settling back to 1 by 19:00, indicating that the sun is setting and the day’s harshest rays are behind us. Enjoy the outdoors, but don’t forget your sunscreen during those midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index values fluctuate significantly, indicating varying levels of sun exposure risk. The high-risk months are from May to August, where the UV Index reaches its peak at 7-8, classifying them as high to very high exposure. Specifically, June and July present the greatest risk, with a burn time of only 15 minutes. In contrast, the winter months (January, February, November, and December) show a low exposure category with UV Index values of 1-2, allowing for longer safe sun exposure (up to 45 minutes). To ensure safety, it is advisable for visitors and residents to take protective measures during the high UV months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hamburg UVI | 1 | 2 | 3 | 5 | 7 | 8 | 7 | 7 | 5 | 3 | 2 | 1 |
| Berlin UVI | 1 | 2 | 4 | 5 | 7 | 8 | 7 | 7 | 5 | 3 | 2 | 1 |
| Koeln UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Obernau | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Frankfurt am Main UVI | 2 | 3 | 4 | 5 | 8 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Munich UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |