Last updated: May 3, 2025
In Arvayheer, Mongolia, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding these UV levels helps in preventing sunburn and maintaining healthy skin, especially in a region known for its dry steppe climate (BSk), which can lead to heightened UV exposure. Typically peaking at 10 during midday hours, the sun’s intensity poses significant risks; even moments outside can result in skin damage without proper precautions. Stay informed and safeguard your skin while enjoying the beautiful landscapes of Arvayheer!
From 07:00 to 08:00, the UV Index starts off mild with a maximum of 1 to 2, making it a safe time for early outdoor activities. As the sun climbs higher, the UV levels rise sharply, reaching 4 by 09:00 and hitting 6 by 10:00. The intensity peaks at 13:00 with a significant 10, indicating high exposure risk, perfect for applying sunscreen and seeking shade. As we move into the afternoon, levels gradually decrease, tapering to 9 by 14:00 and falling back to a more manageable 4 by 17:00. By evening, UV levels drop to 2 at 18:00 and retreat to 1 by 19:00, marking a safe return for those looking to enjoy twilight outdoors. Remember, it's essential to stay vigilant during those peak hours!
| 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 | 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 | 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 |
The UV Index experiences significant seasonal changes throughout the year, peaking during the summer months. January and December record the lowest UV levels (Index 2), classified as low exposure, allowing for a burn time of 45 minutes. As spring approaches, February and March see a rise in UV levels to 3 and 5, indicating moderate exposure and shorter burn times of 30 minutes. The highest UV Index occurs from April to August, reaching 10 during the summer, which is categorized as very high, meaning individuals can burn in as little as 15 minutes under direct sunlight. As fall arrives, September and October show a decrease to 7 and 5, indicating high to moderate levels of risk respectively, with burn times extending back to 25 and 30 minutes. Visitors and residents are advised to take protective measures, especially from April through August, when the risk of UV-related harm is at its peak; wearing sunscreen, hats, and UV-protective clothing, and seeking shade is essential during these high-risk months.
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 |
| Arvayheer | 2 | 3 | 5 | 8 | 10 | 10 | 10 | 10 | 7 | 5 | 3 | 2 |