Last updated: August 1, 2025
In Dzalaa, Mongolia, staying informed about the UV Index is essential for protecting your skin and overall health. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, which can be particularly important in regions like Dzalaa, where the BSk climate can lead to significant UV exposure, especially during the peak hours of 11 AM to 2 PM. With UV Index levels peaking at 11 around noon, being aware of these fluctuations empowers locals and visitors alike to enjoy the sun safely while reducing their risk of harmful effects.
The UV Index throughout the day reveals a notable trend, starting at a calm 1 at 7:00 AM and gradually climbing to its peak of 11 during the peak afternoon hours of 1:00 PM and 2:00 PM. As the sun climbs higher in the sky, the intensity of ultraviolet radiation increases, reaching a sharp rise to 10 by noon, signaling caution for outdoor activities. After the early afternoon, the index begins to decline, drifting down to 5 by 5:00 PM and tapering off to a gentle 1 by 7:00 PM. This data highlights the importance of sun safety, particularly during the mid-day hours when UV exposure is at its strongest. Remember to wear protective clothing and sunscreen when the UV Index rises!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | 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, UV Index values exhibit significant seasonal variation, with the highest risk months being April through August. During this period, from April's UV Index of 9 (very high) to July's peak of 11 (extreme), burn times decrease sharply to as little as 10 minutes, indicating a pressing need for sun protection. Visitors and residents should take extra precautions during these months, including wearing sunscreen with broad-spectrum protection, donning protective clothing, and seeking shade during peak sunlight hours. As summer transitions into early fall, the UV Index remains elevated, but starts to decline, with September at 8 (very high) before gradually decreasing to more moderate levels in the fall and winter months. Staying informed about these seasonal changes can help ensure skin health and safety throughout the year.
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 |
| Dzalaa | 2 | 4 | 6 | 9 | 11 | 11 | 11 | 10 | 8 | 5 | 3 | 2 |