Last updated: July 2, 2025
Understanding the UV Index in Tsagaan-Ovoo, Mongolia, is crucial for safeguarding your skin and overall health. With high UV levels peaking around midday—reaching a maximum of 10—it’s essential to be aware of sun exposure to prevent sunburn and long-term skin damage. Nestled in a BSk climate zone, Tsagaan-Ovoo experiences sunny days that can lead to elevated UV risks, particularly between 11:00 AM and 2:00 PM. By monitoring the UV Index, residents and visitors can take proactive measures to enjoy the outdoors safely while minimizing harmful effects from the sun.
The UV Index throughout the day showcases a notable rise, peaking at an impressive 10 between 1 PM and 2 PM. Starting from a mild 1 at 7 AM, sun lovers can expect a steady ascent, reaching 9 by noon. As the afternoon sun intensifies, the index holds a robust 10, signaling extreme UV exposure, before gradually tapering off to 4 by 5 PM and descending further to 1 by 7 PM. It's a classic reminder to stay protected during those peak hours, especially between 11 AM and 3 PM, when the sun's rays are most potent. Enjoy the sunshine, but don’t forget your sunscreen!
| 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 | 10 | 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 |
Throughout the year, the UV Index experiences notable fluctuations, with significant increases from late winter to summer. January and December represent the lowest risk months, with UV Index values of 2, categorizing them as low exposure, allowing for 45 minutes of sun without protection. As spring transitions into summer, from March (Index 6) to June (Index 10), the risk grows substantially, peaking during the summer months of May through August, where the UV Index remains at a very high level of 10, necessitating protective measures after just 15 minutes of sun exposure. April marks the start of this high-risk period, with a very high exposure category and only 15 minutes till burn. In the fall, the UV Index decreases, but September still holds a high index of 7, allowing for 25 minutes of burn time. Visitors and residents should prioritize sun safety during the high-risk months from April to August by using sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage.
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 |
| Tsagaan-Ovoo | 2 | 3 | 6 | 9 | 10 | 10 | 10 | 10 | 7 | 5 | 3 | 2 |