Last updated: June 2, 2025
In Henglian, China, staying informed about the UV Index is essential for safeguarding your skin health and preventing sunburn. Understanding UV levels allows residents and visitors to make informed decisions about sun protection, especially during peak hours when the index can reach as high as 12. With Henglian's humid subtropical climate, locals face the risk of intense UV exposure, particularly between 10:00 AM and 1:00 PM. By monitoring the UV Index, you can enjoy outdoor activities safely while minimizing harmful effects from the sun.
The UV Index begins its rise at 7:00 AM with a low of 2, gradually climbing to a moderate 3 by 8:00 AM. By 9:00 AM, it reaches 6, but it's at 10:00 AM when the sun truly bears down, peaking at a high of 9. The intensity continues to soar, hitting a maximum of 12 at 12:00 PM, making it the most UV-active hour of the day. From there, it subtly declines, dropping back to 11 at 1:00 PM, and 9 at 2:00 PM. The afternoon brings relief as the index falls to 6 by 3:00 PM and continues to decrease, settling at 4 by 4:00 PM. As the day winds down, the UV Index dips to 2 by 5:00 PM and further to a safe 1 by 6:00 PM and stays consistent through 7:00 PM. Stay sun-smart and avoid peak UV hours for your skin's safety!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | 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 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences notable fluctuations throughout the year, with the highest values occurring from March to September. During these months, particularly from May to August, the UV Index reaches an extreme level of 12, indicating a significant risk of harm from unprotected sun exposure with a burn time as low as 10 minutes. High-risk months include March (9), April (10), and October (9), where the exposure is categorized as very high and the burn time is reduced to 15 minutes. Residents and visitors are strongly advised to take precautions during these periods, such as wearing sunscreen, protective clothing, and sunglasses, and seeking shade during peak sun hours to minimize the risk of sunburn and long-term skin damage. As winter approaches, the UV index gradually decreases, with December recording a moderate level of 5, allowing for more relaxed sun exposure guidelines.
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 |
| Henglian | 6 | 7 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 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 |