Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Buyant, Mongolia, where the sun's rays can pose significant risks to skin health. With a climate classified as BSk, the region experiences notable ultraviolet exposure, especially during the peak daylight hours. Monitoring UV levels helps in preventing sunburn and long-term skin damage, ensuring you enjoy the outdoors safely. During the hottest parts of the day, such as from 12:00 PM to 1:00 PM when the UV Index peaks at 10, awareness and protective measures become essential to safeguard your skin from harmful effects. Embrace the outdoors while being mindful of the sun—your skin will thank you!
The UV Index for the day displays a dramatic rise as the sun ascends in the sky. Starting at a gentle 1 at 07:00, it quickly escalates through the morning, reaching a moderate 3 by 08:00. As midday approaches, the index peaks at a tenacious 10 at 13:00, suggesting a level of UV exposure that requires immediate attention. After this zenith, the index gracefully declines, dropping to 9 at 14:00 and continuing to fall throughout the afternoon, settling back to a soft 1 by 19:00. Stay protected during those peak hours, especially between 11:00 and 14:00, when the sun's 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 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | 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 |
Throughout the year, the UV Index experiences notable changes, significantly impacting visitors and residents. Low-risk months occur in January, November, and December, where the UV Index is between 2 and exposure time is safe for up to 45 minutes. As spring arrives, February and March see a moderate risk (UV Index 3 and 5), and ideal exposure times shorten to 30 minutes. The high-risk months are from April to August, with the UV Index peaking at 10 in June and July, emphasizing a very high exposure category where the burn time drastically decreases to just 15 minutes. As summer wanes into September, the index drops to 7, indicating a high risk with a safer 25-minute burn time. By October, conditions moderate again, but caution is still advised, especially during the transition months in spring and summer when UV levels are at their peak. Visitors and residents are encouraged to take necessary precautions, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours, particularly from May to August.
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 |
| 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 |
| Buyant | 2 | 3 | 5 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 2 | 2 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |