Last updated: August 1, 2025
Understanding the UV Index in Jiantang, China, is essential for protecting your skin from harmful ultraviolet rays, especially during the peak hours of sunlight. Knowing the daily levels of UV exposure can help residents and visitors alike prevent sunburn and maintain long-term skin health. With Jiantang's Dwb climate, characterized by its warm summers and cold winters, the sun's rays can pose significant risks, particularly from 10 AM to 2 PM when the UV Index hits its highest points—reaching a peak of 10 at 11 AM. Stay informed, stay safe, and enjoy the sun responsibly!
The UV Index climbs steadily throughout the morning, peaking at a maximum of 10 at 11:00 AM. Early risers will notice a moderate 3 at 07:00, but by 08:00, it escalates to a higher 5. The sun takes center stage by 09:00, reaching 7, and by the time it's 10:00, it soars to a 9. As the clock strikes 11:00 AM, sun worshippers should take heed as the index hits its highest point. After lunchtime, the UV Index begins to descend gracefully, dropping to 8 at 1:00 PM and further declining to 6 at 2:00 PM. By late afternoon, it falls to 4 at 3:00 PM, quickly diminishing to a mere 1 by 5:00 PM, before concluding with a safe 0 at 7:00 PM. Always remember to protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | 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 | 0 | low | 45 min |
Throughout the year, UV exposure levels fluctuate significantly, with the highest risk months occurring from May to August, when the UV Index peaks at 8 to 10 and the burn time drops to just 15 minutes. During these months, the exposure category ranges from very high to extreme, necessitating heightened caution for outdoor activities. Conversely, the UV Index is at its lowest during January, November, and December, indicating a low exposure category with a burn time of 45 minutes. As such, visitors and residents are advised to take extra precautions during high UV months: wear broad-spectrum sunscreen, protective clothing, and seek shade during peak hours, typically between 10 a.m. and 4 p.m. In contrast, during the lower UV months, while the risk is reduced, it's still important to remain mindful of sun safety practices.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jiantang | 2 | 3 | 5 | 7 | 8 | 9 | 10 | 9 | 7 | 4 | 2 | 2 |
| 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 |