Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Xiashan, China, where prolonged sun exposure can quickly lead to skin damage and health risks. With climate characterized as Cfa, Xiashan experiences significant UV levels, especially during the peak hours between 10:00 AM and 1:00 PM, when the index can reach as high as 12. By being aware of these fluctuations, you can take proactive measures to prevent sunburn and enhance your overall skin health. Stay informed about the daily UV trends to enjoy the sunny climate safely!
As the sun rises, the UV Index begins its steady ascent, starting at a mild 2 at 7:00 AM. By 9:00 AM, it reaches a notable 7, signaling the need for sun protection. The peak occurs at 11:00 AM and 12:00 PM, where it hits a maximum of 12, indicating dangerously high levels of UV radiation. After this midday zenith, the index gradually declines, dropping to 6 by 3:00 PM and further to 1 by 5:00 PM, ultimately reaching 0 at sunset. This hourly progression emphasizes the importance of vigilance against UV exposure, particularly during the late morning to early afternoon when the risk is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 12 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 8 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
During the year, the UV Index experiences significant seasonal variation, particularly peaking from March to September. The high-risk months are April to September, where the UV Index consistently reaches extreme levels of 10 or higher, with the shortest burn time of just 10 minutes in May through August. In contrast, the remaining months, such as January and November, show a high exposure category but allow longer burn times of up to 25 minutes. Therefore, it is crucial for both visitors and residents to take appropriate precautions during the high-risk months, such as applying sunscreen, wearing protective clothing, and seeking shade, while being more lenient during the cooler months. Remember, consistent sun safety is vital 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 |
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 |
Xiashan | 6 | 7 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 8 | 6 | 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 |