Last updated: June 2, 2025
In Rashaant, Mongolia, understanding the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. With peak UV levels reaching a significant 10 around midday, awareness of your exposure can help prevent sunburn and long-term skin health issues. The region experiences a cold semi-arid climate (BSk), characterized by long winters and short summers, where intense sun exposure can occur even at lower temperatures. By keeping an eye on the UV Index, residents and visitors can make informed decisions to protect themselves during high-risk hours, ensuring a healthier outdoor experience.
The UV Index throughout the day presents a striking pattern of intensity and variation. Starting at a gentle 1 at 07:00, the readings gradually increase, hitting 3 by 08:00. As the sun ascends, it reaches a notable 7 by 10:00 and peaks at a scorching 10 from 12:00 to 14:00—a time when sun protection is crucial! The intensity then begins to wane, dropping to 8 by 15:00 and gradually decreasing to 6 at 16:00, before tapering off to 2 by 18:00 and a soft 1 by 19:00. This daily UVI journey underscores the importance of staying vigilant under the sun, particularly during those peak hours!
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 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 fluctuates significantly, indicating varying levels of sun exposure risk. The high-risk months are from March to September, peaking in May with an extreme UV Index of 11, necessitating enhanced sun safety measures. During this period, burn times are notably reduced, dropping to just 10-15 minutes in the very high category from April to August. Visitors and residents are strongly advised to take precautions, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours, particularly between 10 a.m. and 4 p.m., to minimize the risk of sunburn and long-term skin damage. As the UV levels decrease from October to December, it's still wise to remain cautious, especially in February and November, when moderate UV exposure persists.
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 |
| Rashaant | 2 | 4 | 7 | 10 | 11 | 10 | 10 | 10 | 7 | 6 | 3 | 2 |