Last updated: June 2, 2025
Understanding the UV Index in Tsagaan-Ovoo, Mongolia is vital for safeguarding your skin and preventing sunburns. As this picturesque region experiences a BSk climate, UV levels can significantly spike, especially during midday, reaching up to 10 from 12:00 PM to 2:00 PM. Knowing the UV index not only helps you plan your outdoor activities safely but also plays a crucial role in maintaining your skin health. With the potential for high exposure during certain hours, being informed can empower you to take the necessary precautions and enjoy the beautiful Mongolian sunshine more safely.
The UV Index reveals a striking pattern throughout the day, peaking in the early afternoon. Starting with a gentle rise at 07:00 with a score of 1, the index climbs to 2 by 08:00. It gains momentum, reaching 4 at 09:00 and escalating to a moderate 6 by 10:00. The sun climbs even higher, hitting 8 at 11:00 and maxing out at a sizzling 10 between 12:00 and 14:00. As the afternoon wanes, the intensity begins to drop, slipping to 9 at 15:00, then gradually declining to 4 by 17:00. By the time evening rolls in at 18:00, the Risk subsides to 2, before concluding the day at 1 by 19:00. A clear reminder of the sun's power—be sun-smart during those peak hours!
| 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 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | 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 |