Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Bayan-Ovoo, Mongolia, where the sun's rays can be deceptively potent, especially during the peak hours of exposure. With UV levels reaching as high as 8 around midday, awareness of these statistics is essential for effective sunburn prevention and maintaining overall skin health. The region's Dwc climate—characterized by dry winters and short, warm summers—can exacerbate UV exposure risks. By staying informed about the UV Index, you can enjoy the beautiful outdoors while protecting your skin from harmful effects.
As the sun rises, the UV Index begins its ascent, peaking around 12:00 PM with a formidable score of 8, indicating a high risk of harm from unprotected sun exposure. Early morning starts off low, with 1 at 07:00 AM, but by 10:00 AM, it escalates to 6, urging early sun-seekers to apply sunscreen. The peak hours, spanning between 11:00 AM and 1:00 PM, warrant extra caution, as the index remains elevated at 7 and 8, respectively. Following this midday intensity, the index gradually declines, dropping to 5 by 3:00 PM and tapering off to 1 by evening. Enjoy the sun responsibly!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | 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 |