Last updated: August 1, 2025
In Shangmatun, China, understanding the UV Index is crucial for protecting your skin and maintaining overall health. As the sun's rays intensify, particularly during mid-day, awareness of UV levels becomes essential to prevent painful sunburns and long-term skin damage. With a Dwb climate that encompasses cold winters and warm summers, Shangmatun experiences varying UV exposure risks, especially during the peak hours of 10 AM to 2 PM, when the UV Index can soar to 11, indicating a very high risk of harm from unprotected sun exposure. Being informed can help you enjoy the outdoors safely while safeguarding your skin's health.
The UV Index peaks dramatically as the day unfolds, beginning at a mild 2 by 7:00 AM. As the sun climbs higher, the intensity builds steadily, reaching 4 by 8:00 AM and then soaring to 7 at 9:00 AM. The sun’s rays hit their zenith at 12:00 PM, with an intensity of 11, signaling the necessity for sun protection. With a slight dip, the index remains high at 10 by 1:00 PM, before gradually declining to 8 at 2:00 PM. The afternoon sees a gentle descent, with the index falling to 5 by 3:00 PM, then further to 3 at 4:00 PM. As evening approaches, the UV Index drops significantly, settling at a low of 1 by 6:00 PM and staying consistent through 7:00 PM. It’s a strong reminder to safeguard yourself during the midday hours when the sun is most potent!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal variations, with the high-risk months primarily occurring from March to August. During this period, UV exposure escalates sharply, reaching its peak in July with an extreme index of 11. As the summer progresses, visitors and residents should be particularly cautious, as burn times decrease to as little as 10 minutes. Notable high-risk months include May and June, where the indices are categorized as very high (8 and 10), resulting in burn times of just 15 minutes. In contrast, from September to February, UV levels drop significantly, with a return to lower exposure categories and longer burn times in January and December. To ensure safety, it is crucial to wear sunscreen, protective clothing, and seek shade during the peak UV hours, especially in the high-risk months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shangmatun | 2 | 3 | 6 | 7 | 8 | 10 | 11 | 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 |