Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Shuanglu, China, where the unique Dwb climate can lead to significant sun exposure risks. With UV levels peaking at 7 around midday, awareness of these numbers is essential for effective sunburn prevention and overall skin health. By grasping the meaning behind the UV readings—from the moderate levels in the morning to the high peak at noon—individuals can take proactive measures to protect themselves from harmful effects, ensuring a safer and more enjoyable time under the sun.
As the sun rises, the UV Index begins its ascent, peaking during the late morning to early afternoon. At 07:00, it starts at a mild 2, gradually climbing to a moderate 4 by 08:00. The real intensity hits between 09:00 and 12:00, with a maximum reading of 7, signaling the best time to seek shade or apply sunscreen. As the afternoon progresses, the index dips gradually, tapering off to 6 at 13:00, and then declining further to 5 by 14:00. By late afternoon, it drops to a comfortable 3 at 15:00, followed by 2 at 16:00, and settles into the evening with a low 1 from 17:00 to 19:00. This timeline serves as a reminder to protect your skin during those peak hours when UV radiation is most potent!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences notable seasonal changes throughout the year, highlighting varying risk levels for sun exposure. From January to February, the UV Index remains low (2), allowing for safe outdoor activities with a burn time of 45 minutes. As spring progresses, March sees a moderate increase to an Index of 4, indicating a 30-minute burn time. The high-risk months emerge in late spring and summer, peaking in June and July with a very high UV Index of 8 and 9, where the burn time dramatically shortens to just 15 minutes. Visitors and residents are strongly advised to take precautions during these months, such as wearing sunscreen, protective clothing, and seeking shade during peak hours. As summer transitions into autumn, September’s UV Index drops to 6, while October sees a further decrease to 4, both remaining moderate and allowing for safer outdoor activities with longer burn times of 25 to 30 minutes. By November and December, the UV Index returns to low levels (2 and 1), providing a safer environment for outdoor enjoyment with burn times extending back to 45 minutes.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shuanglu | 2 | 2 | 4 | 6 | 7 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| 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 |
| 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 |