Last updated: August 1, 2025
Understanding the UV Index in Cheren, China, is crucial for protecting your skin and maintaining overall health. The UV Index measures the strength of ultraviolet radiation from the sun, which can lead to sunburn and long-term skin damage if not managed properly. Cheren, nestled in an ET climate zone, experiences fluctuating UV levels throughout the day, with peaks reaching a dangerously high index of 17 around 14:00. This makes awareness of the UV Index essential for residents and visitors alike to enjoy the sunny outdoors safely while minimizing the risks associated with UV exposure.
The UV Index during the day shows a dynamic rise and fall, starting from a maximum of 0 at 7:00 AM to a peak of 17 at 2:00 PM. Early morning hours see minimal exposure, with a gradual increase to 9 by 11:00 AM. The real intensity hits at noon when it reaches 13 and surges to its highest point at 1:00 PM, indicating a critical time for sun protection. As the afternoon wanes, the index begins to decline, dropping back to 9 by 5:00 PM, and tapering off to 2 by evening, reflecting a shift in the sun's intensity. Be mindful of these hourly changes to protect your skin, especially during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 16 | extreme | 10 min |
| 14:00 | 17 | extreme | 10 min |
| 15:00 | 15 | extreme | 10 min |
| 16:00 | 12 | extreme | 10 min |
| 17:00 | 8 | very high | 15 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking between March and October. Notably, the highest risk months for UV exposure are April to September, where the index remains in the extreme category, reaching a peak of 18 in May. During these months, the recommended maximum burn time is just 10 minutes, so it is crucial for both visitors and residents to take protective measures, such as applying sunscreen regularly, wearing protective clothing, and seeking shade during peak hours. In contrast, January and November present slightly lower risks with a UV Index of 9 and 10, respectively, allowing for a burn time of 15 minutes. As the year concludes in December, the UV risk decreases further to a high category of 7, enabling a longer burn time of 25 minutes. Overall, awareness and proactive sun safety strategies are essential during the peak UV months to safeguard skin health.
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 |
| 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 |
| Cheren | 9 | 11 | 15 | 15 | 18 | 17 | 17 | 17 | 16 | 12 | 10 | 7 |