Last updated: July 2, 2025
In Guiwu, China, understanding the UV Index is vital for safeguarding your skin health and preventing sunburn. The UV Index varies throughout the day, peaking at 11 during the midday hours, indicating a high risk of harm from unprotected sun exposure. Given Guiwu's Cfa climate, with its warm summers, residents and visitors must be proactive in managing their UV exposure. Being aware of UV levels not only helps in choosing the right protective measures but also supports long-term skin health, making it essential for everyone to stay informed about the daily UV Index.
During the day, the UV Index experiences a significant rise, peaking at 11 around noon, indicating a strong potential for skin damage without protection. The morning starts relatively mild, with values of 2 at 7:00 AM, gradually increasing to 8 by 10:00 AM. As the sun reaches its zenith, the index hits its highest point, 10, at 11:00 AM, before slightly declining to 10 again at 1:00 PM. The afternoon sees a gradual decrease, dropping to 6 by 3:00 PM and continuing down to 1 by 6:00 PM. It's essential to be mindful of UV exposure during the peak hours between 11:00 AM and 2:00 PM, when protective measures are crucial for skin health.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 6 | high | 25 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, the UV Index exhibits notable seasonal fluctuations, with the highest levels occurring from March to August. During this peak period, particularly in June and July, the UV Index reaches 11, categorized as extreme, which results in a burn time of just 10 minutes. The months of March, April, May, August, September, and October also register high UV levels, with indices between 8 and 10 and burn times ranging from 15 minutes. Conversely, January, February, November, and December see moderate UV levels (indices of 4 and 5) with burn times extending to 30 minutes. Visitors and residents should be especially cautious during the high-risk months of March through October, taking preventative measures such as wearing sunscreen, protective clothing, and sunglasses to minimize UV exposure during these times.
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 |
Guiwu | 4 | 5 | 8 | 10 | 10 | 11 | 11 | 10 | 9 | 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 |