Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Sangiyn Dalay, Mongolia, where the BWk climate brings intense sunlight, especially during summer months. With UV levels soaring as high as 11 around midday, being aware of the risks is essential for preventing sunburn and promoting long-term skin health. As you enjoy the beautiful landscapes of Sangiyn Dalay, don’t underestimate the power of the sun—understanding UV exposure can help you protect your skin while making the most of your time outdoors.
The UV Index showcases a dramatic rise as the day progresses, peaking at noon with a striking value of 11. Starting from a gentle 1 at 07:00, the index escalates through the morning, hitting 4 by 09:00 and escalating sharply to 7 at 10:00. The intensity continues to ramp up, reaching a notable 9 by 11:00. As the sun reaches its zenith, the UV Index remains steadfast at 11 from 12:00 to 13:00, signaling a need for sun protection during these hours. A gradual decline follows, with values descending to 10 at 14:00, then 9 at 15:00. As daylight fades, the UV Index gently recedes, finishing the day at 2 by 18:00 and dropping back to 1 by 19:00. This dynamic data highlights the importance of monitoring UV exposure, especially during 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | 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, the UV Index exhibits significant seasonal variation, with the highest levels occurring during the summer months. High-risk months for UV exposure are from April to August, where the index reaches very high to extreme levels, particularly in June, July, and August with a peak index of 11 and a burn time as short as 10 minutes. As such, it is critical for both visitors and residents to take precautionary measures during these times, including wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours. Conversely, the UV Index drops to low levels in January and December, allowing for safer outdoor activities. Awareness of these seasonal changes is essential for maintaining skin health 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 |
| Sangiyn Dalay | 2 | 4 | 6 | 8 | 10 | 11 | 11 | 11 | 8 | 5 | 3 | 2 |