Last updated: June 2, 2025
In Bornuur, Mongolia, understanding the UV Index is crucial for safeguarding your skin and overall health. With the region's Dwc climate, which features cold winters and mild summers, it’s easy to overlook sun exposure risks, especially during the peak hours when UV levels can reach a high of 9 between noon and 1 PM. Awareness of these levels not only helps in preventing sunburn but also plays a critical role in long-term skin health. The UV Index serves as a daily reminder to take precautions against harmful rays, ensuring you enjoy the beautiful Mongolian outdoors safely.
The UV Index reveals a dynamic day of sun exposure, starting with a gentle 1 at 07:00 and gradually ramping up as the morning unfolds. By 09:00, it climbs to 4, reaching a more noteworthy 6 at 10:00. As the sun reaches its zenith, the UV Index peaks at 9 during the crucial hours of 12:00 and 13:00, indicating a high risk of harm from unprotected sun exposure. The intensity begins to wane after 14:00, settling to 7 at 15:00 before gradually decreasing to 1 by 19:00. Remember to protect your skin between 11:00 and 14:00 when the sun’s rays are at their most dangerous!
| 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 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | 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 |
As seasons change, the UV Index fluctuates significantly, indicating varying levels of sun exposure risk throughout the year. From January's low UV Index of 2 to December's index of 1, the sun's intensity is generally less threatening in the winter months. However, the high-risk months peak in May through July, when the UV Index reaches 8 and 9—labeled as very high—with minimal burn times of just 15 minutes. April and August also pose considerable risks, with indices of 7 and 8, respectively. Visitors and residents should take precautions during these high UV months by wearing protective clothing, applying sunscreen, and seeking shade, especially during peak sunlight hours. It's essential to remain vigilant as UV exposure can lead to skin damage and other health issues.
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 |
| Bornuur | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 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 |