Last updated: August 1, 2025
In Darhan, Mongolia, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. The UV levels can spike dramatically, especially during midday when values reach as high as 9, posing increased risks for skin damage. With Darhan's Dwc climate, characterized by cold winters and warm summers, awareness of UV exposure becomes even more vital as residents enjoy outdoor activities in the warmer months. By staying informed about the local UV Index, you can take proactive steps to protect yourself and fully enjoy the beautiful sunny days that Darhan has to offer.
The UV Index throughout the day reveals a fascinating spectrum of sun exposure and intensity. Starting from a mild level of 1 at 07:00, it gradually climbs, reaching 2 by 08:00. As the clock strikes 09:00, the index hits 4, marking the onset of stronger sun rays. The peak is recorded at 13:00, where the UV Index soars to a formidable 9, signaling a critical time for sun safety. After this zenith, the levels gently descend, with 8 at 14:00, followed by a steady decline to 7 at 15:00. As evening approaches, the index tumbles to 5 by 16:00, further down to 4 at 17:00, and finally returns to a comfortable 1 by 19:00. This gradual rise and fall of UV levels throughout the day highlights the importance of taking sun protection measures, especially during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | 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, the UV Index exhibits significant seasonal fluctuations, peaking during the summer months and dropping to lower levels in winter. High-risk months for UV exposure are from May to August, when the UV Index reaches very high levels of 8 to 9, with a burn time as short as 15 minutes. In contrast, the winter months of January, November, and December show an index of 2 or lower, indicating a low risk of harm. It is crucial for both visitors and residents to take protective measures during the high-risk months, such as wearing sunscreen, protective clothing, and limiting sun exposure during peak hours. In the moderate risk months of February, March, April, October, and September, similar precautions are still advised to prevent skin damage. Stay informed and safe under the sun!
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 |
| Darhan | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 9 | 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 |