Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Yunxi, China, where the subtropical climate (Cfa) can expose individuals to varying levels of ultraviolet radiation throughout the day. Awareness of UV levels is essential not only for preventing sunburn and long-term skin damage but also for promoting overall skin health. With peak UV Index readings reaching as high as 12 during midday hours, it’s vital to stay informed about the risks associated with UV exposure, especially during the hot summer months when outdoor activities are at their peak. By keeping an eye on the UV Index, you can take proactive measures to protect yourself and enjoy the sunshine safely.
The UV index shows a striking pattern throughout the day, starting off at a mild 2 at 07:00 and gradually climbing to a peak of 12 by noon. As the morning warms, it reaches an energetic 9 at 10:00, then surges to its maximum intensity of 11 at 11:00 before hitting 12 at 12:00, urging sunbathers and outdoor enthusiasts to take precautions. The afternoon sees a gentle decline, with the UV index slipping back to 9 at 14:00 before tapering to 6 and finally dropping to 2 by 17:00. As night approaches, the UV exposure diminishes dramatically, resting at 0 by 19:00. Embrace the sunshine early, but remember to seek shade and protect your skin during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index in our region experiences significant seasonal changes, with high-risk months occurring from March to September. During this period, the UV Index peaks at 12 (extreme) from June to August, reducing burn time to a mere 10 minutes. The highest indices are recorded in May and June, indicating an urgent need for sun protection. As such, residents and visitors should take proactive measures, especially in March, April, and May, where the indices range from 9 to 11 (very high to extreme), with burn times decreasing to 15 minutes. Conversely, the risk subsides in winter months, with a moderate index of 5 in December, where burn times are more forgiving at 30 minutes. It’s crucial to stay vigilant during high-risk months, applying sunscreen, wearing protective clothing, and seeking shade when necessary to ensure safety under the sun.
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 |
| Yunxi | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 12 | 11 | 8 | 7 | 5 |
| 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 |