Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Haicheng, China, where sunny days can quickly lead to elevated UV exposure. With a Cwa climate characterized by warm, humid summers, the potential for sunburn and long-term skin damage increases significantly, especially during peak hours when UV levels soar to 13 around noon. By keeping a close eye on the UV Index, you can effectively protect your skin and enjoy the beautiful outdoors safely. Awareness of these daily fluctuations not only aids in sunburn prevention but also promotes overall skin health, ensuring you can bask in the sun with confidence.
As the sun rises, the UV Index begins at a gentle 1 at 7:00 AM, gradually increasing to 2 by 8:00 AM. By 9:00 AM, it reaches a moderate 4, but the intensity really ramps up at 10:00 AM, soaring to 8. The peak occurs at 12:00 PM, where the UV Index hits a staggering 13, remaining consistently high until 1:00 PM. As the afternoon progresses, it starts to decline, dipping to 12 at 2:00 PM and gradually falling to 3 by 5:00 PM. The day concludes with a return to a safer 1 by 7:00 PM, making it essential to stay protected during those intense midday hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 4 | 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 | 12 | extreme | 10 min |
15:00 | 9 | very high | 15 min |
16:00 | 6 | high | 25 min |
17:00 | 3 | moderate | 30 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with the highest values observed from March through October. During these months, particularly from May to August, the UV Index peaks at 13 to 14, indicating an extreme exposure category, with a burn time as short as 10 minutes. The high-risk months are therefore identified as March to August, where spending too much time in direct sunlight without protection can lead to severe skin damage. In contrast, the risk decreases in January and February (UV Index of 8 to 10, very high) and again in November and December, where lower UV levels (especially in December at 7) allow for longer safe exposure times (up to 25 minutes). Visitors and residents should take protective measures such as wearing sunscreen, hats, and protective clothing during peak months, and seek shade whenever possible to minimize the risk of UV exposure.
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 |
Haicheng | 8 | 10 | 12 | 12 | 13 | 13 | 13 | 14 | 12 | 11 | 8 | 7 |
Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |