Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Shiyang, China, where the subtropical humid climate brings about significant sun exposure throughout the year. With UV levels peaking at 10 during midday, awareness of these indices is essential for sunburn prevention and overall skin health. As the sun’s intensity increases from the early morning hours, being informed about UV risks can help you take effective measures to protect your skin, ensuring you enjoy the vibrant outdoor life that Shiyang has to offer while minimizing the risk of harmful effects from excessive UV radiation.
As the sun rises, the UV Index gradually climbs, starting at a modest 2 at 7:00 AM. By 9:00 AM, it leaps to 6, signaling that the rays are intensifying. The peak occurs from 11:00 AM to 1:00 PM, where the UV Index hits a high of 10, urging sun protection measures. As the afternoon progresses, the index declines, dipping down to 5 at 3:00 PM and further to 1 by 5:00 PM. Finally, as the sun sets at 7:00 PM, it drops to 0, marking a safe end to skin exposure. It's a clear reminder that midday sun presents the greatest risk, making careful planning essential for outdoor activities.
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 | 7 | high | 25 min |
15:00 | 5 | moderate | 30 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 |
The UV Index demonstrates notable seasonal fluctuations, with high-risk months occurring from March to September, where values peak at 11 during the summer, categorizing these months as having an extreme exposure level. In these periods, the burn time significantly decreases, reducing to just 10 minutes in June, July, and August. Visitors and residents should be particularly cautious during these months, applying sunscreen and wearing protective clothing to minimize the risk of sunburn and skin damage. Conversely, the winter months of January, November, and December show a moderate UV Index, allowing for longer exposure times of up to 30 minutes. It is crucial for individuals to stay informed about these changes and adjust their outdoor activities accordingly to safeguard their skin health throughout the year.
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 |
Shiyang | 5 | 6 | 8 | 10 | 10 | 11 | 11 | 11 | 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 |