Last updated: June 2, 2025
In Shiniu, China, awareness of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels not only helps prevent painful sunburns but also plays a vital role in maintaining long-term skin health and reducing the risk of skin cancer. With Shiniu's Cwa climate, characterized by its humid subtropical conditions, residents must be particularly vigilant during peak UV hours, typically around noon when the index can soar to a high of 11. This makes it essential to stay informed about daily UV exposure risks and take appropriate precautions to enjoy the sun safely.
At 07:00, the UV Index begins its climb with a modest level of 1. By 08:00, it doubles to 2, signaling the start of a gradual increase in solar intensity. As the sun rises higher, the index swiftly escalates to 4 by 09:00 and reaches a brisk 7 at 10:00. The peak occurs at 12:00, hitting a notable 10, and it continues to soar, reaching its maximum of 11 by 13:00. After this midday peak, the UV Index begins to decline, dropping to 9 at 14:00 and gradually decreasing to 7 by 15:00. As the afternoon progresses, it further retreats to 5 at 16:00 and falls to 3 by 17:00, finally settling back to 1 at 18:00 and 19:00. This prompts a reminder to take essential sun protection during the day, especially when the index is at its highest!
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 | 7 | high | 25 min |
11:00 | 9 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 7 | high | 25 min |
16:00 | 5 | moderate | 30 min |
17:00 | 3 | moderate | 30 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
As the seasons change, the UV Index fluctuates significantly, indicating varying levels of solar intensity. High-risk months for UV exposure are from April to August, when the index reaches extreme levels (11), resulting in a burn time of just 10 minutes. March begins the rise with a high index of 7, while September and October also present considerable risk with values of 9 and 8, respectively. Residents and visitors should take precautions during these months, such as wearing sunscreen, protective clothing, and seeking shade to minimize the risk of skin damage. In contrast, the winter months of December and January offer moderate exposure, but even then, it’s wise to remain vigilant.
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 |
Shiniu | 4 | 5 | 7 | 9 | 11 | 11 | 11 | 11 | 9 | 8 | 5 | 3 |
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 |