Last updated: July 2, 2025
Understanding the UV Index in Bayasgalant, Mongolia is crucial for the health and well-being of its residents and visitors alike. As UV levels can fluctuate significantly throughout the day, being aware of these changes helps prevent sunburn and long-term skin health issues. Bayasgalant, situated in a BSk climate zone, experiences intense UV exposure during the summer months, peaking around midday with UV Index values reaching up to 9. Staying informed about these levels not only helps protect against harmful effects but also allows everyone to enjoy the beautiful sunny days safely.
The UV Index peaks significantly throughout the day, starting with a low 1 at 07:00 and rapidly climbing as the sun rises. By 10:00, it reaches 6, indicating a moderate risk for harm, which escalates sharply to a high of 9 between 12:00 and 13:00. This substantial index signifies that precautions are necessary, especially with the sun at its strongest. As the afternoon progresses, the UV Index gradually declines, dipping to 5 by 16:00, and further tapering off to a mere 1 by 19:00. For those outdoors, staying protected during the peak hours is critical for skin health!
| 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 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes, marking a clear rise during the warmer months. January and February present low to moderate UV levels, with burn times of 45 and 30 minutes, respectively. However, as spring approaches, by April, the UV Index escalates to 7, indicating high exposure risks and a reduced burn time of 25 minutes. May through August represent the high-risk months, characterized by an extremely high UV Index of 9 and a minimal burn time of just 15 minutes. As summer wanes, the UV Index decreases, with September showing a high index of 6 and subsequent months returning to lower levels. Visitors and residents are advised to practice sunsafety, especially from May to August, by wearing protective clothing, using sunscreen, and seeking shade to mitigate the risk of UV exposure during these peak months.
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 |
| Bayasgalant | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 6 | 4 | 2 | 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 |