Last updated: June 2, 2025
In Longchuan, China, awareness of the UV Index is crucial for protecting your skin and overall health. With UV levels peaking at an impressive 15 around midday, understanding these fluctuations can significantly help in preventing sunburn and long-term skin damage. The region's Cwb climate features distinct seasonal variations, but during sunny days, residents and visitors must remain vigilant about UV exposure. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while safeguarding your skin from harmful effects.
The UV Index rises dramatically throughout the morning, starting at a modest 1 at 07:00. By 09:00, it escalates to 4, but the real intensity kicks in at 10:00 with a reading of 7. The peak occurs at 13:00, hitting an impressive 15, indicating a high risk of harm from unprotected sun exposure. As the afternoon progresses, the index begins to decline, dropping to 11 by 15:00 and further diminishing to 2 by 18:00, ultimately returning to 1 by 19:00. For optimal protection, it’s crucial to stay shaded or apply sunscreen during the midday hours when the UV levels are at their 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 | 10 | very high | 15 min |
12:00 | 13 | extreme | 10 min |
13:00 | 15 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 11 | extreme | 10 min |
16:00 | 8 | very high | 15 min |
17:00 | 5 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variations, reaching its peak during the warmer months. From March to October, the UV Index is consistently in the extreme range, with values peaking at 16 in July. This period represents the highest risk months for UV exposure, necessitating a burn time of just 10 minutes for unprotected skin. While January and February still maintain a very high UV Index of 8 and 9 respectively, the risk drastically increases in late spring and summer. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak hours from 10 AM to 4 PM. As winter approaches, the UV Index decreases, presenting a lower risk with a high index of 7 in December and a more forgiving burn time of 25 minutes.
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 |
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 |
Longchuan | 8 | 9 | 12 | 13 | 14 | 15 | 16 | 15 | 13 | 12 | 9 | 7 |