Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Xiantang, China, where the climate can heighten exposure to harmful ultraviolet rays. With peak UV levels soaring to a staggering 13 during midday, awareness of sun intensity is essential for preventing sunburn and protecting skin health. As Xiantang experiences a Cwa climate, characterized by distinct wet and dry seasons, the risks associated with UV exposure notably fluctuate throughout the year. By keeping an eye on the UV Index, you can enjoy the sun while ensuring your skin stays safe and healthy.
The UV Index throughout the day exhibits a remarkable fluctuation, reaching its peak at 12:00 PM with a scorching 13. As the sun climbs higher, the intensity of UV radiation increases, starting from a mild 1 at 7:00 AM and surging to a notable 9 by 10:00 AM. The morning hours reveal a steady rise, culminating in a blistering 12 at 11:00 AM. After the midday peak, the UVI begins to taper off, dropping to 11 at 1:00 PM, before gradually declining to 4 by 4:00 PM. As evening approaches, the UV levels continue to diminish, landing at a safe 0 by 7:00 PM. This hourly data underlines the importance of sun safety during the peak hours, particularly between 11:00 AM and 2:00 PM, when the UV Index poses the greatest risk.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 12 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 7 | high | 25 min |
16:00 | 4 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, the UV Index experiences notable fluctuations, with the high-risk months being primarily from February to September, where the index reaches extreme levels, particularly peaking in May at an index of 14. Visitors and residents should be particularly cautious during these months, adhering to a burn time of just 10 minutes in extreme categories. The very high exposure months of October and November, with indices of 10 and 9 respectively, still necessitate protective measures, allowing for a burn time of 15 minutes. As a guideline, ensure to apply sunscreen, wear protective clothing, and seek shade, especially between 10 AM and 4 PM during these high-risk periods to minimize UV exposure and safeguard skin health.
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 |
Xiantang | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 10 | 9 | 7 |
Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |