Last updated: June 2, 2025
Understanding the UV Index in Chengjiao, China is crucial for protecting your skin and overall health from harmful ultraviolet rays. With peak UV levels soaring as high as 13 during midday, awareness of these UV fluctuations can help residents and visitors prevent sunburn and long-term skin damage. The region experiences a Cwa climate characterized by distinct seasons, which can lead to higher UV exposure risks, especially in the summer months. By knowing when UV levels are highest, you can take proactive measures to enjoy the outdoors safely and maintain your skin's health.
As the day unfolds, the UV Index rises dramatically, reaching its peak at 12:00 PM with a striking value of 13. Early morning starts off mild, with a maximum of just 1 at 7:00 AM. By 9:00 AM, it's climbing to 5, while at 10:00 AM, it jumps to a notable 8. The intensity continues to escalate, hitting 11 at 11:00 AM and maintaining a blistering 13 until 1:00 PM. As the sun begins its descent, the UV Index gradually declines: 10 at 2:00 PM, 7 at 3:00 PM, and falling steadily to 1 by 7:00 PM. This sharp increase and subsequent decrease underscore the importance of sun protection during the midday hours when the UV exposure is at its highest.
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 | 13 | extreme | 10 min |
13:00 | 13 | 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 |
Throughout the year, UV Index levels exhibit significant seasonal changes, reaching their peak during the summer months. Notably, March through September are categorized as high-risk months, with UV Index readings often in the extreme range of 11 to 13, resulting in a burn time of just 10 minutes for unprotected skin. Visitors and residents are advised to take precautionary measures during these months, such as wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially between 10 a.m. and 4 p.m. As the year transitions into October and November, the UV Index remains high at levels 9 to 10, indicating that while the risk decreases slightly, vigilance is still essential. January and December present a lower risk with an index of 7, but caution is still warranted during these months.
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 |
Chengjiao | 7 | 9 | 12 | 11 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 7 |
Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |