Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Xunyi Chengguanzhen, China, where sun exposure can vary dramatically throughout the day. With a climate classified as Dwa, the region experiences significant UV radiation, particularly during peak hours. Knowing UV levels is essential for preventing sunburn and maintaining overall skin health, especially given the heightened intensity observed between 11:00 AM and 1:00 PM when the index soars to 11. By staying informed about UV risks, you can enjoy the outdoors safely while protecting your skin from harmful effects.
As the sun rises, the UV Index begins its slow ascent, starting at a gentle 1 at 07:00. By 08:00, it nudges upwards to 2, but it’s not until 09:00 that the index leaps to 5, signaling the need for sun protection. The heat peaks sharply at 11:00, reaching a blistering 10, and maintains its intensity with an equally high 11 from 12:00 to 13:00. As the afternoon wanes, the UV levels gradually decrease, dipping to 10 at 14:00, then falling to 8 by 15:00. By 16:00, a noticeable drop brings it to 5, and finally, as the day winds down, the index settles back to 3 at 17:00, before ending the day at a safe 1 by 19:00. Be sure to monitor the UV Index and protect your skin during those peak 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 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 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, UV exposure levels fluctuate significantly, peaking during the warmer months. The highest UV Index occurs from May to August, with an extreme rating of 11, indicating a burn time of just 10 minutes—these months pose the greatest risk for skin damage. As summer transitions into fall, the Index gradually declines, with September and October seeing very high levels of 10 and 8, respectively, where burn times increase slightly to 15 minutes. In contrast, winter months like January, February, and December present moderate UV conditions with burn times stretching to 30 minutes. Visitors and residents should take extra precautions during high-risk months by wearing protective clothing, applying sunscreen frequently, and seeking shade to mitigate the risks associated with intense UV radiation.
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 |
| Xunyi Chengguanzhen | 4 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 8 | 5 | 3 |
| 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 |