Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Jena, Romania, as it serves as a vital indicator of sun exposure risks throughout the day. With the potential for sunburn and long-term skin health issues, being informed about UV levels can help you take necessary precautions and enjoy the sun safely. Jena's Cfb climate brings distinct seasonal changes, but during sunny days, UV exposure can spike significantly, particularly between 10 AM and 3 PM when the index reaches its peak of 8. By staying aware of these levels, you can protect your skin and fully embrace the beauty of Jena’s outdoors.
The UV Index offers a clear snapshot of sun intensity throughout the day. From 07:00 to 09:00, it's a comfortable level, hovering around 1 to 2, making it safe for morning outdoor activities. As the sun climbs higher, the index jumps to 4 by 10:00 and peaks at an impressive 8 between 13:00 and 14:00—the time to take extra precautions! After the zenith, the levels gradually decline to 5 by 16:00, and then descend to a cozy 1 by 19:00. Plan accordingly and enjoy the sun safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 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 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index fluctuates markedly, with high-risk months typically occurring from April to August. During this period, the UV Index regularly reaches very high levels, particularly in May, June, and July, where a burn time of just 15 minutes indicates an increased risk of skin damage. As the year transitions towards autumn and winter, the UV Index drops to moderate and then low, with safer exposure times of 30 to 45 minutes in effect during the colder months. Visitors and residents are advised to take precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's rays are strongest. Staying informed about the daily UV Index can help ensure safe and enjoyable outdoor activities year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iasi UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 |
| Cluj-Napoca UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 |
| Timisoara UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Jena | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Bucharest UVI | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Craiova UVI | 2 | 3 | 6 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |