Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Shenglilu, China, where the climate is characterized by warm, humid summers typical of the Cfa climate zone. High UV levels, particularly during peak hours—from 11:00 AM to 1:00 PM—pose serious risks for sunburn and long-term skin health concerns. With a maximum UV Index that can reach an intense level of 11, being vigilant about UV exposure is vital for enjoying the sun safely while protecting your skin. Whether you’re exploring the outdoors or lounging in the sun, knowing the UV levels can help you make informed decisions to safeguard your health.
The UV Index fluctuates throughout the day, beginning with a gentle rise from a modest 1 at 07:00 to a peak of 11 at noon. As the sun reaches its highest point, the intensity of UV radiation escalates, urging caution and protection. The index remains high until 14:00, maintaining a reading of 10, before gradually declining in the afternoon. By 17:00, it drops to 3 and cools off to 1 by evening, highlighting the dramatic shift in UV exposure as daylight fades. For a sun-safe day, plan outdoor activities in the morning or later in the evening!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 9 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 8 | very high | 15 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 |
Throughout the year, seasonal UV changes significantly impact sun exposure and potential skin damage. During the early months of January and December, the UV Index is moderate (5 and 4 respectively), allowing for longer burn times of 30 minutes. However, as spring approaches, there's a notable increase, reaching very high levels by March (8) and April (10). The months from May to August are particularly high-risk, featuring an extreme UV Index (11-12) with a minimal burn time of just 10 minutes. As summer transitions to fall, the UV levels decrease slightly, but September still poses a risk with a UV Index of 9. To safeguard against sunburn and long-term skin damage, it’s advisable for visitors and residents to take precautionary measures during high-risk months: seek shade, wear protective clothing, and apply broad-spectrum sunscreen frequently, especially from March to August.
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 |
Shenglilu | 5 | 6 | 8 | 10 | 11 | 11 | 11 | 12 | 9 | 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 |