Last updated: May 3, 2025
Understanding the UV Index in Shimen, China is crucial for protecting your skin and overall health from harmful UV radiation. With sunburn and long-term skin damage being a significant concern, knowing the daily UV levels can help you take necessary precautions during outdoor activities. Shimen’s Cwa climate brings varying UV exposure risks throughout the year, with peak levels reaching as high as 11 around noon. Being aware of these fluctuations empowers you to enjoy the sun safely, safeguarding your skin against its potential dangers.
The UV Index for the day exhibits a pronounced peak around midday, starting from a gentle 1 at 07:00 and climbing steadily. By 09:00, it reaches a moderate 5, advancing to a more intense 7 by 10:00. The sun's strength continues to rise, hitting a maximum of 11 at 12:00, making it crucial to take sun protection measures. The intensity begins to wane after that, dropping to 10 at 13:00, then gradually easing to 9 at 14:00. By late afternoon, the levels decline further to 6 at 15:00, before settling at 4, 2, and finally returning to 1 by evening, illustrating the day's clear UV radiation cycle.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, exposure to ultraviolet (UV) radiation shows significant seasonal variation. January and February present moderate UV Index levels of 4 and 5, respectively, allowing for a burn time of 30 minutes. As spring approaches, March sees an increase to a high UV Index of 7 (burn time of 25 minutes), followed by April, which reaches a very high UV Index of 9 and reduces burn time to 15 minutes. The UV intensity peaks in May at an extreme 11, necessitating a cautious approach with a burn time of just 10 minutes. Through the summer months of June, July, and August, the UV Index remains very high at 10, maintaining a burn time of 15 minutes. In September and October, UV levels gradually decline to 9 and 8, respectively, yet still require vigilance during outdoor activities with a burn time of 15 minutes. The UV Index drops again in November to 5 and falls further to 3 in December, with longer burn times of 30 minutes. Visitors and residents should remain cautious during the high-risk months of April through October, seeking shade, wearing protective clothing, and applying sunscreen regularly to mitigate the risks associated with UV exposure.
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 |
| Shimen | 4 | 5 | 7 | 9 | 11 | 10 | 10 | 10 | 9 | 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 |