Last updated: July 2, 2025
Understanding the UV Index in Senj, Mongolia is crucial for safeguarding your skin health and preventing sunburn. As the sun's rays reach their peak intensity during the midday hours, knowing the UV levels helps you take appropriate precautions to minimize risks associated with excessive UV exposure. Senj's arid BWk climate presents unique challenges, with UV Index levels often soaring to 10 during the hottest parts of the day. By staying informed about daily UV fluctuations, you can enjoy the sunny days while protecting your skin from potential harm.
As the sun rises, the UV Index begins to climb, starting at a modest 1 by 7:00 AM. By 8:00 AM, it has tripled, reaching 3, and continues its ascent to 4 at 9:00 AM. The peak intensity hits between 12:00 PM and 1:00 PM, where the UV Index soars to an intense 10—an indication of strong sun exposure. The afternoon sees a gradual decline, with values of 9 at 2:00 PM and 7 by 3:00 PM, showing that even later in the day, caution is advised. As the sun begins to set, the UV Index drops back down to 1 by 6:00 PM, making the daylight hours the most critical for sun protection. Stay safe and smart under the sun!
| 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 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels show significant seasonal variation, highlighting key periods of risk for sun exposure. January and December feature low UV levels (Index 2), allowing for safer outdoor activities with a burn time of 45 minutes. As temperatures rise, February and March transition to moderate levels (Index 3 and 5 respectively), where burn times decrease to 30 minutes. The high-risk months of April through August are marked by very high UV Index levels (9-10), where the risk of harm from unprotected sun exposure is substantial, with a burn time of just 15 minutes. September sees a decline to a high level (Index 7), allowing for 25 minutes of safe exposure before the index drops again in October and November. Residents and visitors are strongly advised to take precautions during the high UV months, including wearing sunscreen, protective clothing, and seeking shade, especially during midday hours to minimize the risk of 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 |
| Senj | 2 | 3 | 5 | 7 | 9 | 10 | 10 | 10 | 7 | 5 | 3 | 2 |