Last updated: May 3, 2025
In Alzenau in Unterfranken, understanding the UV Index is crucial for safeguarding your skin from harmful ultraviolet radiation. As residents of this Cfb climate zone enjoy temperate conditions, awareness of daily UV levels can help prevent sunburn and long-term skin health issues. With peak UV indices reaching 8 during midday, it's essential to be informed about potential exposure risks, especially for outdoor activities. By keeping an eye on the UV Index, you can take proactive measures to protect yourself and your loved ones from the sun's harmful effects, ensuring a safe and enjoyable time under the sun.
The UV Index throughout the day showcases a dynamic range of solar intensity. At 07:00, it starts off gently at 1, perfect for early risers. As the sun climbs higher, the index rises to 2 by 08:00 and hits 3 by 09:00, indicating a gradual increase in UV exposure. The peak arrives at 13:00 with an impressive 8, urging outdoor enthusiasts to take precautionary measures. Following this, the intensity begins to recede, dropping to 6 by 15:00, and decreasing to 5 by 16:00. As dusk descends, the UV Index cools down to 2 at 18:00, finally settling back at 1 by 19:00. It’s a vivid reminder of how the sun's strength can fluctuate dramatically throughout the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 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, the UV Index fluctuates significantly, reflecting seasonal changes in sun exposure. From January to April, the UV Index remains relatively low to moderate, with burn times increasing from 45 minutes in January to 30 minutes by April. However, May through July marks the high-risk period with a very high UV Index of 8, where even short exposures of 15 minutes can lead to sunburn. August sees a slight decline to a high risk level of 7, with a burn time of 25 minutes. As autumn approaches in September and October, the index decreases again to moderate levels, allowing a burn time of 30 minutes. By November and December, the UV exposure drops to low levels, with safe burn times returning to 45 minutes. For both visitors and residents, it is essential to remain vigilant during the high-risk months of May to August, ensuring adequate sun protection measures are in place, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours to minimize the risk of UV-related health issues.
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 |
| Alzenau in Unterfranken | 2 | 3 | 4 | 5 | 8 | 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 |