Last updated: June 2, 2025
Understanding the UV Index in Stamboliyski, Bulgaria is crucial for safeguarding your skin health as the sun's rays can pose significant risks throughout the day. With the region’s Cfa climate, characterized by hot summers, knowing the UV levels can help you take proactive measures against sunburn and long-term skin damage. On a typical day, the UV Index peaks at a striking 10 between 1:00 PM and 2:00 PM, emphasizing the need for protection during these hours. Staying informed about UV exposure not only enhances your outdoor experience but also promotes healthier skin for the long term.
The UV index begins its ascent at 07:00, starting at a gentle 1, then climbs gradually through the morning. By 10:00, it reaches a moderate 5, but from 11:00 onwards, the sun's intensity becomes pronounced, peaking at an impressive 10 between 13:00 and 14:00. After this zenith, the index dips to 8 at 15:00 and continues its decline, settling back to 2 by 18:00. As the day winds down into the evening, the UV index drops to a low 1 by 19:00, signaling a return to safer sun exposure levels. Enjoy the sunshine while staying protected during the high points!
| 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 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 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 |
Throughout the year, the UV Index shows significant seasonal variation, peaking during the summer months. From January to February, UV levels are relatively low, with a maximum exposure of 45 minutes in January. However, starting in March, the risk escalates considerably, reaching a high level by March (UV Index 7) and escalating to a very high category in April (UV Index 8) through July (UV Index 10). Notably, the highest risk period spans from April to August, with a consistent burn time of 15 minutes during these months. By September, the index decreases to 7, followed by October at 6, which still falls in the high category with a burn time of 25 minutes. The year concludes with reduced risk in November and December, reverting to low levels (UV Index 2), where individuals can spend up to 45 minutes in the sun without significant risk of burns. For visitors and residents, it is crucial to take precautions—such as wearing sunscreen, protective clothing, and seeking shade—especially between April and August to minimize exposure during these 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 |
| 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 |
| Stamboliyski | 2 | 4 | 7 | 8 | 9 | 10 | 9 | 9 | 7 | 6 | 3 | 2 |