Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Tsetsegnuur, Mongolia, where the dry, continental climate (BSk) can lead to significant sun exposure. As UV levels peak during the day—reaching a maximum of 11 around 1 PM—awareness is essential for preventing sunburn and safeguarding your skin health. By staying informed about the daily UV Index, you can better protect yourself from harmful rays, especially during those hours when exposure risks are highest. Remember, even on seemingly mild days, the sun can be deceptively strong!
As the sun rises, the UV Index begins its steady climb, peaking at 11 by 1:00 PM, signaling a day of intense sunlight. The journey starts at a mild 1 at 7:00 AM, quickly escalating to 3 by 8:00 AM. By 10:00 AM, it reaches 7, then jumps to an impressive 9 at 11:00 AM, marking the approach of noon. At 12:00 PM, the UV Index hits the maximum of 10, before soaring to its highest point of 11 at 1:00 PM. As the afternoon progresses, the index begins to decline, dropping to 10 at 2:00 PM, and steadily falling to 8 at 3:00 PM, 6 at 4:00 PM, and winding down to 1 by 7:00 PM. To enjoy the great outdoors safely, remember to seek shade and apply sunscreen during the peak hours!
| 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 | 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, UV Index levels exhibit significant seasonal variations that highlight periods of heightened sun exposure risk. From March to August, the UV Index reaches its peak, especially in May and June, where it remains at an extreme level of 11, resulting in a short burn time of just 10 minutes. April also presents a challenge with a very high index of 8. Consequently, May to July are considered high-risk months for sunburn and skin damage. Residents and visitors are strongly advised to take precautions during these times, such as wearing protective clothing, applying sunscreen, and limiting direct sun exposure, especially between 10 a.m. and 4 p.m. In contrast, from November to February, the risk decreases significantly, with UV levels categorized as low to moderate, allowing for safer outdoor activities with minimal protection necessary.
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 |
| Tsetsegnuur | 2 | 4 | 6 | 8 | 11 | 11 | 10 | 10 | 7 | 5 | 3 | 2 |