Last updated: June 2, 2025
In Bayasgalant, Mongolia, being aware of the UV Index is essential for protecting your skin and overall health. Understanding UV levels can help you prevent sunburn and long-term skin damage, which is particularly important in this semi-arid climate where the sun can be surprisingly intense. With maximum UV readings peaking at 10 around midday, residents and visitors alike need to stay vigilant about sun safety during peak hours. Whether you're hiking the picturesque landscapes or enjoying outdoor activities, knowing the UV Index empowers you to take the necessary precautions for a safer, healthier experience under the sun.
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, UV Index levels exhibit significant seasonal variations, with the highest risk for UV exposure occurring from May to August. In these months, the UV Index reaches very high levels (9-10), indicating a burn time as short as 15 minutes. Conversely, from December to February, UV exposure is generally low to moderate (UV Index 2-3), allowing for longer safe exposure times. Residents and visitors are advised to take extra precautions during the high-risk months—applying sunscreen regularly, wearing protective clothing, and seeking shade during peak hours—to minimize the risk of harmful UV exposure. As summer transitions to fall, the risk decreases, but caution should still be exercised during March and April when UV levels begin to rise.
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 |
| Bayasgalant | 2 | 3 | 5 | 7 | 9 | 10 | 9 | 9 | 7 | 4 | 3 | 2 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |