Last updated: May 3, 2025
Understanding the UV Index in Sveti Vlas, Bulgaria is essential for maintaining skin health and preventing sunburn, especially during the sunny summer months. As visitors and residents enjoy the warm Mediterranean climate, it’s crucial to be aware of the varying UV levels throughout the day, peaking between 11:00 AM and 3:00 PM when they can reach as high as 9. Being informed about these levels can help you take protective measures, ensuring you can enjoy the sun safely while minimizing the risk of skin damage. Remember, the UV rays can be surprisingly strong, so sun safety should always be a priority in this beautiful coastal town.
As the sun rises, the UV Index begins its gradual ascent. At 7:00 AM, it starts at a modest 1, indicating minimal risk. By 8:00 AM, it rises to 2, still manageable for early risers. The intensity picks up at 9:00 AM with a 3, signaling the need for a little sunscreen. The peak arrives between 11:00 AM and 1:00 PM, where it soars to a striking 9 at 1:00 PM, which suggests strong sun protection is essential. Following this, the index slips down, recorded at 8 at 2:00 PM and 7 at 3:00 PM, offering a brief reprieve. As the afternoon fades into evening, the UV Index drops steadily, landing back at 1 by 7:00 PM. Stay informed and protect your skin during those peak hours!
| 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 | 7 | 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 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV index levels, which can significantly affect sun exposure for visitors and residents. January and December show low UV levels (Index 2), allowing for 45 minutes of safe exposure. However, as spring progresses, March and April enter the high category (Index 6-7), reducing safe burn time to 25 minutes. The summer months of May through August are particularly risky, with very high UV levels (Index 8-9) and a burn time dropping to just 15 minutes. As autumn approaches, September's UV index decreases to high (Index 7), allowing for 25 minutes of exposure, followed by moderate levels in October and November (Index 3-4), where safe burn times extend to 30 minutes. Residents and visitors are advised to monitor the UV index closely, especially between May and August, and take appropriate sun protection measures, including wearing sunscreen, hats, and protective clothing during high-risk months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ruse UVI | 2 | 4 | 6 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Varna UVI | 2 | 4 | 6 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Sveti Vlas | 2 | 4 | 6 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Burgas UVI | 2 | 4 | 6 | 7 | 9 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Plovdiv UVI | 2 | 4 | 6 | 8 | 9 | 10 | 9 | 9 | 7 | 6 | 3 | 2 |
| Sofia UVI | 2 | 4 | 7 | 7 | 9 | 10 | 10 | 9 | 7 | 6 | 3 | 2 |