Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Ulaan-Ereg, Mongolia, where the climate is categorized as BSk—characterized by dry, semi-arid conditions. As sun exposure can lead to severe skin damage and heighten the risk of sunburn, being aware of the daily UV levels is essential for protecting your skin health. In Ulaan-Ereg, UV levels peak around noon, reaching as high as 9, which signals an increased need for caution during outdoor activities. Staying informed about UV Index ratings will help you enjoy Mongolia's sunny days while safeguarding against harmful effects.
As the sun rises, the UV Index begins its ascent, peaking sharply at 12:00 PM with a record high of 9—a clear signal for sun safety. The day starts gently at 07:00 AM with a low of 1, but by 10:00 AM, the intensity ramps up to 6. As noon approaches, the index escalates to its maximum, lingering there for a couple of hours. By 2:00 PM, it slightly drops to 8, yet remains formidable until the late afternoon. As the sun descends, the risk wanes, falling to 3 by 5:00 PM and retreating to comfortable levels of 1 as twilight approaches. It’s a day to stay vigilant and protect your skin during those peak hours! ☀️
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 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 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal variations, with the highest risk for UV exposure occurring from May to August. In these months, the UV Index reaches very high levels (9-10), indicating a burn time as short as 15 minutes. Conversely, from December to February, UV exposure is generally low to moderate (UV Index 2-3), allowing for longer safe exposure times. Residents and visitors are advised to take extra precautions during the high-risk months—applying sunscreen regularly, wearing protective clothing, and seeking shade during peak hours—to minimize the risk of harmful UV exposure. As summer transitions to fall, the risk decreases, but caution should still be exercised during March and April when UV levels begin to rise.
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 |
| Ulaan-Ereg | 2 | 3 | 5 | 7 | 9 | 10 | 9 | 9 | 7 | 4 | 3 | 2 |
| 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 |