Last updated: June 2, 2025
Understanding the UV Index in Longtang, China, is crucial for protecting your skin from the harmful effects of ultraviolet radiation. With UV levels peaking at a robust 12 during midday, prolonged exposure can lead to sunburn and increase the risk of skin damage over time. In this region's humid subtropical climate, where sunny days are common, being aware of UV levels can greatly enhance your sun safety strategy. Knowing when to seek shade or apply sunscreen not only promotes skin health but also helps you enjoy the outdoors more safely and comfortably. Stay informed and safeguard your skin against the sun’s rays in Longtang!
The UV Index dramatically rises as the day progresses, peaking in the early afternoon. Starting at a modest 1 at 07:00, the UV exposure quickly increases, reaching 10 by 11:00 and peaking at a dangerous 12 from 12:00 to 13:00. As the sun begins to set, the index gradually declines, falling to 5 by 16:00, and tapering off to a low 1 by 18:00 and 19:00. This ebb and flow underscores the importance of sun safety, especially during those peak hours when the UV Index is at its highest. Stay protected!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | 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, the UV Index demonstrates significant seasonal changes, peaking during the summer months. From January to February, the UV Index ranges from 6 to 7, indicating a high risk of harm from unprotected sun exposure with a burn time of 25 minutes. As spring arrives in March, the index rises to 9 (very high) with a reduced burn time of 15 minutes, escalating to extreme levels (12) in April through June, where the burn time drops to just 10 minutes. July sees the peak UV Index of 13, before slightly declining to 12 in August. As we transition to fall, September and October remain very high with indexes of 10 and 9 respectively and a burn time of 15 minutes. By November, the levels decrease to 7 (high) and 5 (moderate) in December, extending burn times to 25 and 30 minutes. It’s essential for visitors and residents to stay vigilant, particularly from March to October, using sunscreen, seeking shade, and wearing protective clothing during peak UV hours to mitigate the risk of skin damage.
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 |
| Longtang | 6 | 7 | 9 | 12 | 12 | 12 | 13 | 12 | 10 | 9 | 7 | 5 |
| 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 |