Last updated: July 2, 2025
In Baruunsuu, Mongolia, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With the region's semi-arid BWk climate, residents and visitors alike face varied UV exposure throughout the day, peaking between 11:00 AM and 2:00 PM when the index can soar to a significant 11. As UV levels rise, so does the risk of skin damage, making it essential to stay informed and protected. By monitoring the UV Index, you can enjoy the sunny days in Baruunsuu while safeguarding your skin from harmful rays.
The UV Index throughout the day follows a predictable rise and fall, peaking at 11 around 1:00 PM. Starting at a modest 1 at 7:00 AM, it gradually escalates, reaching 10 by 12:00 PM, signaling the need for sun protection. As the afternoon progresses, the index dips from 11 to 8 by 3:00 PM, then declines further to 2 by 6:00 PM, and finally settles back at 1 by 7:00 PM. This data underscores the importance of taking precautions during the hours of peak UV exposure, particularly between 11:00 AM and 3:00 PM, when levels are highest and pose the greatest risk to skin health.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 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 experiences significant fluctuations, indicating varying levels of sun exposure risk. From January to February, the UV Index rises from 2 (low) to 4 (moderate), suggesting that sun protection becomes increasingly important as the months progress. The high-risk months of March to August see the UV Index reach dangerous levels, peaking at 11 (extreme) in both June and July, with burn times decreasing to just 10 minutes. Even as summer ends, September remains a concern with a UV Index of 8 (very high). By October, the UV risk starts to moderate again to 5 (moderate) before returning to low levels in December. Visitors and residents should take precautions during the spring and summer months, particularly when the UV Index is 6 or higher, by wearing protective clothing, using broad-spectrum sunscreen, and limiting sun exposure during peak hours.
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 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |
| Baruunsuu | 2 | 4 | 6 | 8 | 10 | 11 | 11 | 10 | 8 | 5 | 3 | 2 |