Last updated: June 2, 2025
Understanding the UV Index in Trier, Germany, is essential for everyone who enjoys the outdoors, especially given the region's mild Cfb climate. As the sun rises higher in the sky, the potential for harmful UV radiation increases, peaking at noon with an index of 8, which indicates a high risk of harm from unprotected sun exposure. Being aware of UV levels helps in preventing sunburn, protecting skin health, and reducing the long-term risks of skin cancer. With typical exposure risks in Trier, especially during the summer months, staying informed about the UV Index can empower you to take proactive measures for safe sun enjoyment.
The UV Index throughout the day showcases a dynamic pattern of intensity. Starting at a mild 1 at 07:00, it gradually escalates as the sun climbs higher. By 10:00, it reaches 5, signaling a noteworthy rise. The peak occurs at 13:00, with a striking 9, indicating a high potential for harm without protection. Following this zenith, the index starts to wane, dropping to 6 by 16:00 and further diminishing to 1 by 19:00. This illustrates a critical window from 10:00 to 14:00 when caution is essential for outdoor enthusiasts looking to enjoy the sun safely.
| 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 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do UV levels, significantly affecting both residents and visitors. Starting the year, January and November present a low UV Index (2), with a burn time of 45 minutes, making outdoor activities safer. Moving into February and March, the UV Index rises to 3 and 4 respectively, indicating a moderate risk with burn times of 30 minutes. The high-risk months begin in April with an Index of 6, decreasing burn time to 25 minutes, and peak in May and June where the Index reaches 8 and 9, categorized as very high, and necessitating protective measures within just 15 minutes of sun exposure. July and August maintain a very high level at 8 and 7 respectively, but with slightly longer burn times of 15 and 25 minutes. As summer wanes into September and October, the risk decreases, yet still stays notable at 6 and 4 with 25 and 30-minute burn times. Finally, the year rounds off with December, where UV levels drop to a low Index of 1, allowing for 45 minutes of safer outdoor exposure. To ensure safety, it is crucial for everyone to take appropriate sun protection measures, especially during the high-risk months from April to August.
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 |
| Frankfurt am Main UVI | 2 | 3 | 4 | 5 | 8 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Trier | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |
| Munich UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |