Last updated: July 2, 2025
In Altan Hil, China, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet rays. Understanding UV levels helps in preventing sunburn and promoting long-term skin health, especially during the peak hours when the UV index reaches its highest levels of 10 around midday. The region's BSk climate is characterized by dry, sunny conditions, making it essential for residents and visitors to stay informed about potential UV exposure risks. By staying vigilant and taking the necessary precautions, you can enjoy the outdoors while safeguarding your skin from damage.
The UV Index throughout the day displays a distinct pattern of increasing and decreasing intensity. Starting at a modest 2 at 07:00, the index gradually rises, reaching a moderate level of 3 by 08:00. However, the sun really begins to shine at 09:00, skyrocketing to a notable 5. By 10:00, it hits 7, and between 11:00 and 12:00, we experience the peak UV Index of 10, where sun safety becomes essential! After the zenith at 13:00, the numbers begin their descent, dropping to 8 by 14:00 and then tapering off further to 6 at 15:00. As the afternoon fades, the UV Index dwindles to a soft 4 at 16:00, before settling to a gentle 2 at 17:00 and finally a low 1 for the evening hours, signifying the day's retreat into twilight. Remember to prioritize sun protection during the peak hours when the sun's rays are most intense!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | 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 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with a noticeable increase from March to August. The high-risk months are April to August, where the UV Index reaches 8-10, categorized as very high; during this period, the recommended burn time decreases to just 15 minutes. In contrast, January and December exhibit low exposure levels, with a UV Index of 2 and a burn time of 45 minutes. Visitors and residents should take extra precautions during the high UV months by wearing sunscreen, protective clothing, and seeking shade, especially between 10 AM and 4 PM when the sun's rays are the strongest. During the rest of the year, while the risk is lower, it is still advisable to be mindful of UV exposure, especially in March, September, and October with moderate UV levels.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Altan Hil | 2 | 3 | 6 | 8 | 10 | 10 | 10 | 10 | 7 | 5 | 3 | 2 |
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
| Shanghai UVI | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |