Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Yuduan, China, where the subtropical climate can lead to significant UV exposure. With peak UV levels reaching a staggering 12 around noon, awareness of these values is essential for preventing sunburn and maintaining overall skin health. The high UV readings, especially during the midday hours, highlight the importance of protecting yourself from harmful rays to reduce the risk of skin damage. As you enjoy the beautiful weather typical of the Cfa climate zone, don't forget to check the UV Index to make informed choices about sun safety.
The UV Index today showcases a dynamic pattern, starting off gently with a maximum of 1 at 7:00 AM. As the day progresses, the intensity rises, peaking at an impressive 12 between 12:00 PM and 1:00 PM—the moment when sun safety becomes paramount. Just before noon, the index hits 11, inviting sun-seekers to enjoy the warmth but reminding them to stay protected. After its zenith, the index gradually declines, dropping to 10 at 2:00 PM, and continues to decrease throughout the afternoon and evening, falling to 1 by 7:00 PM. This daily UV cycle highlights the importance of being mindful around midday when UV exposure is at its highest. Remember to apply sunscreen and wear protective gear during those peak hours!
| 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 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | 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 |
As the seasons change, the UV Index reflects significant variations in sun exposure risk. From January to February, the UV Index remains in the high category, with a burn time of 25 minutes. The UV risk escalates sharply in March with a very high Index of 9, reducing burn time to 15 minutes, peaking in April, May, June, July, and August, where the Index hits an extreme level of 12 and the burn time decreases to just 10 minutes. After this peak, the risk gradually diminishes; during September and October, the Index returns to very high levels of 10 and 9, respectively, allowing 15 minutes of exposure before risking sunburn. As we approach November and December, the UV Index drops back to high and moderate levels of 7 and 5, with burn times extending to 25 and 30 minutes respectively. Visitors and residents are advised to take necessary precautions during the high-risk months, particularly from March to August, by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak sun hours to mitigate the risk of 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 |
| Yuduan | 6 | 7 | 9 | 11 | 11 | 12 | 12 | 12 | 10 | 9 | 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 |