Last updated: June 2, 2025
In Harhiraa, Mongolia, staying informed about the UV Index is crucial for safeguarding your skin health against harmful sun exposure. Understanding local UV levels not only helps prevent painful sunburns but also plays a vital role in reducing the long-term risks of skin damage and related conditions. With a BSk climate characterized by intense sunlight and varying UV levels throughout the day, residents and visitors alike should take heed of the pronounced highs—reaching a peak of 9 around midday. By being UV-aware, you can enjoy the beauty of Harhiraa while keeping your skin protected.
The UV Index throughout the day presents a clear pattern of intensity, peaking at midday. Starting from a mild level of 1 at 07:00, the index rises steadily, reaching 2 by 08:00. The real surge occurs between 09:00 and 13:00, where it escalates from 4 to a striking 9—the highest point of the day. As the afternoon unfolds, the intensity slightly declines to 7 at 15:00, before tapering off to 5 at 16:00. The evening sees a further decrease, settling back to 2 by 18:00 and returning to 1 at 19:00. For those enjoying outdoor activities, it’s essential to take precautions, especially during the peak hours from 11:00 to 14:00 when the UV rays are most potent.
| 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 | 9 | 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 |
Throughout the year, seasonal UV changes reflect significant fluctuations in the UV Index, which peaks during the summer months. From January to February, the UV Index starts low but gradually increases, reaching its highest levels from March to August. The high-risk months are specifically April through August, where the UV Index consistently ranges from 8 to 9, indicating a very high exposure category with a burn time of just 15 minutes. Visitors and residents are advised to take necessary precautions during these peak months by using sunscreen, wearing protective clothing, and seeking shade to minimize their risk of UV-related harm. In contrast, October to December sees a decline in UV exposure, with lower burn times of 30 to 45 minutes, making these months less risky for outdoor activities.
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 |
| Harhiraa | 2 | 3 | 6 | 8 | 9 | 9 | 9 | 8 | 6 | 5 | 3 | 2 |