Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Zhangtan, China, where the subtropical climate can lead to significant sun exposure. Awareness of UV levels helps in preventing harmful sunburns and protecting skin health, allowing individuals to enjoy the outdoors safely. With peak UV levels hitting 12 around noon, it’s essential to understand how to manage sun exposure, especially during the warmer months when the risks are higher. By staying informed about the UV Index, residents can take appropriate precautions and keep their skin safe under the bright Zhangtan sun.
At dawn, the UV Index starts gently at 2 by 7:00 AM, gradually building momentum as the sun rises. By 8:00 AM, it ticks up to 4, reaching a noteworthy 6 by 9:00 AM. The day's intensity peaks with a striking 12 at noon, emphasizing the importance of sun protection during these peak hours. As the afternoon unfolds, 11 at 1:00 PM and 11 again at 2:00 PM signal sustained exposure risks. The UV intensity begins to decline after 2:00 PM, dipping to 8 at 3:00 PM, then to 6 at 4:00 PM. By evening, the index fizzles out to 1 at 5:00 PM and remains there until 7:00 PM, before finally waning to 0 as the sun sets. Enjoy the sunshine, but remember to stay protected during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | 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 |
Throughout the year, the UV Index varies significantly, indicating seasonal changes in sun exposure risk. The high-risk months are from March to September when the UV Index reaches very high to extreme levels—peaking at 12 in May through August, with a burn time of just 10 minutes. Visitors and residents should particularly exercise caution during these months by seeking shade, wearing protective clothing, and applying sunscreen regularly. As winter approaches, the UV Index decreases, with January and February remaining high but allowing for longer burn times of 25 minutes. In contrast, October marks a return to very high, urging continued sun safety practices. Overall, understanding these UV trends is essential for protecting skin health 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 |
Zhangtan | 6 | 7 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 9 | 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 |