Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Shang'an, China, as it provides essential information about the potential risks of sun exposure throughout the day. With peak UV levels reaching a significant 14 between noon and 1 PM, being aware of these fluctuations can help you effectively prevent sunburn and protect your skin health. Given Shang'an's warm Aw climate, the city experiences intense sunlight that can pose serious risks without proper precautions. Stay informed and make informed choices to enjoy the beautiful outdoors safely!
As the sun rises, the UV Index begins its ascent, starting low at 1 by 7:00 AM. By 9:00 AM, it climbs to a moderate 5, warning early risers to take heed. The real intensity arrives at 11:00 AM, peaking at a striking 11—a clear signal to seek shade and protect your skin. The peak continues at 12:00 PM and 1:00 PM, both hitting 14, where caution is paramount. Gradually, the UV radiation tapers off, dropping to 12 by 2:00 PM and declining further to 6 by 4:00 PM. As the day winds down, the index falls to 3 at 5:00 PM, and eventually settles back to 1 by 7:00 PM. It's a vivid reminder of the sun’s strength—stay protected during those midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal changes in UV exposure reveal a pronounced peak during the warmer months, particularly from March to October, where the UV Index remains in the extreme category (ranging from 13 to 14), with a notably high risk of skin damage in just 10 minutes of sun exposure. February and January also present significant risks, with UV Indexes of 11 and 9 respectively, suggesting more caution in these months as well, especially for outdoor activities. November and December see a reduction in UV intensity, but the Index remains at a very high level of 9 and 8, indicating that even in winter, protective measures against UV exposure are necessary. Visitors and residents are advised to prioritize sun safety during these high-risk months by wearing protective clothing, applying sunscreen regularly, and limiting time in direct sunlight, particularly during midday hours when the sun’s rays are strongest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Shang'an | 9 | 11 | 13 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 8 |