Last updated: August 1, 2025
Understanding the UV Index is vital for residents and visitors in Luanzhou, China, as it serves as a crucial gauge of sun exposure and its potential risks. With a climate characterized by warm summers, the UV Index can soar, especially during midday, reaching a peak of 11 at noon. This makes awareness of UV levels essential for sunburn prevention and long-term skin health. By comprehending these levels, you can take proactive measures to protect yourself and enjoy the beautiful outdoor environment of Luanzhou while minimizing exposure during the highest-risk periods.
The UV Index throughout the day exhibits a distinct pattern, peaking at a startling 11 at noon, indicating very high sun exposure. As the sun rises, the index grows gradually from a modest 2 at 7:00 AM to a 6 by mid-morning. The intensity reaches its zenith at 11:00 AM with a 10, making it crucial to seek shade or wear sun protection. In the early afternoon, the index maintains a high level at 10, before gradually declining to 6 by 3:00 PM and tapering off to 1 by 7:00 PM. This data underscores the importance of midday sun safety, reminding everyone to take precautions when UV levels are highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the levels of ultraviolet (UV) radiation, with significant fluctuations throughout the year. January and December exhibit a low UV index of 2, allowing for longer exposure times of 45 minutes without burning. February introduces a moderate risk (UV index 4), reducing safe exposure to 30 minutes. The risk escalates from March (high, UV index 6, burn time 25 minutes) through to July, where it peaks at an extreme level of 11, necessitating a mere 10 minutes of safe sun exposure. August remains very high (UV index 9, burn time 15 minutes) before tapering off in September and October with high risk (UV index 7 and 6, respectively), allowing for longer burn times of 25 minutes. The year concludes with moderate UV levels in November. Visitors and residents are advised to be particularly cautious during the high-risk months of April, May, June, and July, where protective measures such as sunscreen and appropriate clothing are essential to minimize harmful UV exposure.
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 |
| Luanzhou | 2 | 4 | 6 | 8 | 8 | 9 | 11 | 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 |