Last updated: June 2, 2025
In Sanyu, China, being aware of the UV Index is crucial for safeguarding your skin from harmful ultraviolet rays. Understanding UV levels not only aids in preventing sunburn but also promotes long-term skin health, allowing you to enjoy the outdoors safely. Sanyu's climate, characterized by warm summers and moderate precipitation, brings with it significant UV exposure risks, particularly between the late morning and early afternoon hours when the UV Index can soar to as high as 13. Stay informed and protect yourself as you navigate the sunny days in this beautiful region!
As the sun rises, UV Index levels begin to climb steadily, starting at a modest 1 at 07:00. The intensity ramps up quickly, reaching 2 by 08:00 and soaring to 5 by 09:00. The peak occurs between 11:00 and 13:00, where the UV Index reaches a striking 11 to 13, signaling a strong need for sun protection during these hours. Afterward, the index gradually declines, dipping to 10 at 15:00, and continuing to fall to 7 by 16:00. As evening approaches, the UV Index retreats further to 2 by 18:00 and returns to 1 at 19:00. Planning your day around this UV Index chart can help keep you safe while enjoying the sun!
| 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 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variation, with the highest levels typically occurring from February to September, during which time the risk of UV exposure is considerably elevated. February, March, April, May, June, July, and August are classified as very high to extreme, with burn times ranging from 10 to 15 minutes. The peak UV Index of 13 occurs in April, May, June, and July, highlighting these months as particularly hazardous for sun exposure. September and October remain high-risk months with an index of 12 and 9, respectively, requiring continued caution. Conversely, the UV Index decreases during the cooler months of November and December, where it is categorized as high to moderate. Visitors and residents are strongly advised to take protective measures, such as seeking shade, wearing protective clothing, and applying sunscreen, especially during the high-risk months to minimize the risk of sunburn and long-term skin damage.
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 |
| Sanyu | 5 | 8 | 9 | 13 | 13 | 13 | 13 | 12 | 12 | 9 | 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 |