Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Sharga, Mongolia, given its significant implications for skin health and sunburn prevention. With its BWk climate, Sharga experiences high levels of UV radiation, especially during the midday hours when the UV Index peaks at a striking 10. As such, being aware of the daily UV levels can help residents and visitors take necessary precautions to protect their skin and enjoy the beautiful outdoors safely. With UV exposure risks increasing from 08:00 to 14:00, knowing when to seek shade or apply sunscreen can make all the difference in maintaining healthy skin.
The UV Index throughout the day reveals a gradual rise in intensity, peaking between 12:00 PM and 1:00 PM at an impressive 10, indicating a heightened need for sun protection. The morning starts off mild, with readings of 1 at 7:00 AM and climbing to 3 by 8:00 AM. As the sun climbs higher, the index escalates sharply to 7 by 10:00 AM, reaching its maximum of 8 at 11:00 AM. After noon, the index remains high but begins to decline, dipping to 9 at 2:00 PM, before settling to 5 by 4:00 PM. As the evening approaches, the values gently retreat to 3 at 5:00 PM, 2 by 6:00 PM, and finally back to 1 at 7:00 PM, illustrating the arc of the sun's strength throughout the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | 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 |
As the seasons change, so too does the UV Index, significantly affecting the risk of skin damage from sun exposure. January and December see a low UV Index of 2, allowing for safe exposure of about 45 minutes. The UV levels begin to rise in February with a moderate index of 3, highlighting the need for awareness as burn times decrease to 30 minutes. March and April present high levels at 6 and 7, respectively, with a burn time of just 25 minutes. The peak risk occurs between May and August, where the UV Index consistently hits 10 and 9, involving very high exposure with a swift burn time of merely 15 minutes. As autumn arrives in September, the index drops to 7, followed by moderate levels back in October and November. Visitors and residents are strongly advised to take precautionary measures, such as applying sunscreen, wearing protective clothing, and seeking shade, especially during the high-risk months of March through August.
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 |
| Sharga | 2 | 3 | 6 | 7 | 10 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |