Last updated: May 3, 2025
Understanding the UV Index in Darhan, Mongolia, is crucial for maintaining skin health and preventing sunburn, especially given the region's unique climate. With a Dwb climate zone, Darhan experiences varied UV exposure throughout the day, peaking between 11:00 AM and 1:00 PM, where UV levels can reach as high as 8. This highlights the importance of being aware of daily UV levels to take necessary precautions against skin damage. By staying informed about the UV Index, residents and visitors alike can enjoy the sunny days while safeguarding their skin from harmful rays.
From 07:00 to 19:00, the UV Index showcases a typical daily pattern, starting at a mild 1 and gradually climbing to a peak of 8 between 12:00 and 13:00. This midday surge indicates an elevated risk for sun exposure, with precautions strongly advised. As the sun begins to descend, the index gracefully tapers off, dropping back to 1 by 19:00, signaling a return to safer levels. Outdoor enthusiasts should plan their sun safety strategies around the peak hours of 10:00 to 14:00, when UV radiation is most intense.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 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 | 6 | high | 25 min |
| 16:00 | 4 | 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 demonstrates significant fluctuations, with peaks occurring during the summer months. May through August are particularly high-risk months, characterized by a very high UV Index of 8 or 9, where the recommended burn time decreases to as little as 15 minutes. In contrast, the winter months of December and January see a low UV Index of 1, allowing for safe exposure up to 45 minutes without risk of sunburn. As spring progresses, UV levels rise sharply, reaching a high of 6 in April and transitioning to very high levels by May. Residents and visitors are strongly advised to take protective measures during high-exposure times, especially in late spring and summer, by wearing sunscreen, hats, and protective clothing to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Darhan | 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 |