Last updated: June 2, 2025
In Ulaantolgoy, Mongolia, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you avoid harmful sunburns and reduces the risk of long-term skin damage. With the region's BSk climate, residents and visitors can experience significant UV exposure, especially during midday when the index peaks at 10. By staying informed about UV levels throughout the day, you can enjoy the beautiful Mongolian sun while safeguarding your skin's health.
The UV Index throughout the day showcases a striking pattern of sun exposure. Early risers at 07:00 will encounter a very mild index of 1, but as the morning progresses, the intensity ramps up swiftly. By 10:00, it reaches 7, signaling the need for caution. Peak UV exposure arrives during the lunch hour from 12:00 to 14:00, when the index hits its maximum of 10, meaning precautions are essential. After this peak, the numbers start to decline, dropping to 8 by 15:00 and further down to 1 by 19:00. This hourly data suggests a crucial window for sun safety measures, particularly during those midday hours. Be sure to apply sunscreen and seek shade during those high-risk times!
| 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 | 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, seasonal fluctuations in UV index significantly impact sun exposure risk. The high-risk months for UV exposure are from April to August, when the index reaches a peak of 10, indicating a very high risk level and a quick burn time of just 15 minutes. Notably, March also poses risk with a high index of 6. Conversely, the winter months of January and December present a low risk, where outdoor activities allow for 45-minute burn times. Visitors and residents are advised to take precautionary measures during high UV months by wearing sunscreen, protective clothing, and sunglasses, especially between April and August, to minimize 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 |
| Ulaantolgoy | 2 | 4 | 6 | 8 | 10 | 10 | 10 | 10 | 7 | 5 | 3 | 2 |