Last updated: July 2, 2025
In Chengqiao, China, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding the daily fluctuations in UV levels can help residents and visitors alike protect themselves from harmful ultraviolet rays, especially during peak hours when the UV Index reaches its maximum of 10 around noon. With Chengqiao's Cfa climate, characterized by warm summers and moderate humidity, the risk of overexposure to UV radiation increases. By staying informed about the UV Index, you can enjoy outdoor activities while safeguarding your skin from unnecessary damage.
The UV Index throughout the day showcases a dynamic pattern of sun exposure. Starting gently at 07:00 with a UV Index of 2, it climbs steadily, peaking at 11:00 with a strong 10, indicating that it's essential to take sun safety precautions. The intensity remains high until 13:00, ensuring ample time for outdoor activities, but then the index begins to decline. By 15:00, it drops to 5, and as the sun sets, it falls to a softer 1 by 18:00. This data highlights the importance of sunscreen and protective measures during the peak midday hours when UV radiation is at its most potent.
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 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 3 | 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 exposure fluctuates significantly, with the highest risks occurring from March to August. In these months, particularly from June to July, the UV Index peaks at 11, classified as extreme, which means burn times can be as short as 10 minutes. Visitors and residents should take precautions during these high-risk months by wearing protective clothing, sunglasses, and sunscreen, and seeking shade during peak sunlight hours. Conversely, in January, November, and December, the UV Index remains lower, ranging from 4 to 5 with a moderate exposure category, allowing for longer safe exposure times of 30 minutes. Always stay informed about local UV conditions to ensure safe outdoor activities year-round.
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 |
Chengqiao | 4 | 6 | 8 | 10 | 10 | 11 | 11 | 10 | 10 | 8 | 5 | 4 |
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 |