Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Nuden, Mongolia, where the unique BWk climate can lead to significant sun exposure. Elevated UV levels, particularly between 10:00 AM and 2:00 PM, make it essential to be aware of potential risks to your skin, including sunburn and long-term damage. With UV readings peaking at 11 during midday hours, taking precautions can help maintain skin health and prevent harmful effects of sun exposure. Being informed about the local UV Index not only empowers you to enjoy the outdoors safely but also supports a healthier lifestyle in this distinct Mongolian landscape.
At 07:00 AM, the UV Index starts low at 1, offering a gentle reminder of the sun's presence. As the day unfolds, the intensity rises, peaking at 12:00 PM with a robust 10, signaling the need for sun protection. The highest point occurs at 13:00, reaching a striking 11, where it's crucial to stay shaded or apply sunscreen. After this peak, the UVIndex begins to dip gradually, descending to 9 by 14:00, and further falling to 7 by 15:00. The late afternoon brings respite with levels declining to 5 at 16:00, 3 by 17:00, and reverting to 2 by 18:00. Finally, as the sun sets at 19:00, the index returns to a mild 1, signaling a safe end to the day outside. Plan your outdoor activities accordingly to stay safe in the sun!
| 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 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 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 do the levels of UV radiation, which have significant implications for residents and visitors. From January to February, UV exposure remains low to moderate, with burn times of up to 45 minutes. March sees a sharp increase, jumping to a high UV Index of 6, where the burn time decreases to 25 minutes. The months of April through August present the highest risks, with UV Index values peaking at 11 in July, where skin can burn in just 10 minutes. As summer wanes, September's UV Index of 7 reduces the burn time to 25 minutes, followed by more moderate levels in October and November. Finally, December returns to a low exposure category. For optimal safety, it is crucial for individuals to take protective measures—such as wearing sunscreen, hats, and sunglasses—especially during the high-risk months of April 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 |
| Nuden | 2 | 3 | 6 | 8 | 9 | 10 | 11 | 10 | 7 | 5 | 3 | 2 |