Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Bayan-Ovoo, Mongolia, where the climate can expose individuals to higher levels of ultraviolet radiation, especially during the sunny summer months. Monitoring UV levels is essential for preventing sunburn and promoting long-term skin health, as prolonged exposure can lead to serious skin issues. In Bayan-Ovoo, typical UV readings can soar to as high as 9 during peak hours, underscoring the importance of staying informed about these risks to effectively protect yourself while enjoying the outdoors in this beautiful region.
As the day unfolds, the UV Index rises steadily from its early morning low of 1 at 07:00, signaling a gentle start. By 08:00, it climbs to 3, indicating increased sun exposure. The intensity peaks between 11:00 and 13:00, reaching a significant 9 at 13:00—perfect for sun protection awareness. Following this high, the index gradually tapers off, settling at 6 by 15:00 before dwindling to 2 by 18:00. Finally, as the sun sets, the UV levels return to a mild 1 by 19:00. Stay aware and protected during those peak hours, especially when the UV rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 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, UV Index levels fluctuate significantly, indicating varying risks for skin damage due to sun exposure. The high-risk months are from April to August, when the UV Index reaches its peak at 9, categorizing it as very high during June and July and resulting in a burn time of just 15 minutes. As spring transitions to summer, individuals should take extra precautions, including wearing protective clothing, applying sunscreen regularly, and seeking shade, especially during midday hours. In contrast, winter months see lower UV Index levels (1-3), offering safer conditions for outdoor activities but still warranting caution during sunnier days. It is advisable for both visitors and residents to stay informed about the UV Index to protect their skin throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Darhan UVI | 1 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Bayan-Ovoo | 1 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Erdenet UVI | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Ulan Bator UVI | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 6 | 4 | 3 | 1 |
| OElgii UVI | 2 | 3 | 5 | 7 | 10 | 9 | 9 | 9 | 7 | 5 | 2 | 1 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |