Last updated: June 2, 2025
Being aware of the UV Index in Haylaastay, Mongolia, is crucial for protecting your skin and overall health. Understanding UV levels can help you take preventative measures against sunburn and long-term skin damage. With a BSk climate, Haylaastay experiences fluctuating UV exposure, with peak levels reaching up to 9 around midday, indicating significant risk. By staying informed about the UV Index, residents and visitors can make informed choices about sun safety, ensuring enjoyable days under the sun without compromising skin health.
The UV Index rises swiftly throughout the morning, peaking at a maximum of 9 between 11:00 AM and 1:00 PM, indicating a high risk of harm from unprotected sun exposure. Early risers will encounter a modest 2 at 7:00 AM, but as the sun climbs, the intensity increases, reaching 3 by 8:00 AM and escalating to a notable 5 by 9:00 AM. By 10:00 AM, it's wise to seek shade or apply sunscreen as the index hits 7. As the afternoon approaches, the index dips slightly to 8 at 2:00 PM, before gradually declining to a gentle 1 by 6:00 PM, making late evening hours much safer for outdoor activities. Stay sun smart and enjoy the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal fluctuations that require careful attention from both residents and visitors. From January to February, the risk remains low to moderate, with burn times ranging from 30 to 45 minutes. However, as spring arrives and peaks in April with a high UV Index of 7, the risk escalates, necessitating more diligent sun protection. The summer months of May to August are particularly concerning, featuring a sustained very high index of 9 and a minimized burn time of only 15 minutes—the highest risk period. As September approaches, the index drops to 7, but caution should still be exercised. The UV levels fall again in October, settling to a moderate 4, and remain low through November and December. To ensure safety, especially during high-risk months (May through August), it is crucial to apply sunscreen, seek shade, and wear protective clothing.
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 |
| Haylaastay | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 7 | 4 | 2 | 2 |
| 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 |