Last updated: June 2, 2025
In Shimen, China, understanding the UV Index is essential for safeguarding your skin from harmful ultraviolet rays. With its Cwb climate, the region experiences varying UV levels, peaking at an intense 11-13 during midday. Recognizing these levels is crucial for sunburn prevention and maintaining long-term skin health. As you enjoy the beautiful surroundings of Shimen, remaining aware of UV exposure risks can help you protect your skin and enhance your outdoor experiences. Make sure to plan your activities accordingly and take necessary precautions when the sun is at its strongest!
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 |
| Shimen | 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 |