Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Mengxi, China, as it plays a vital role in sunburn prevention and overall skin health. With a typical climate characterized by hot, humid summers, Mengxi experiences significant UV exposure, especially around midday when the UV Index can soar to 12. By being aware of daily UV levels, you can protect yourself from harmful effects, ensuring safe outdoor activities while keeping your skin healthy. Stay informed and safeguard your well-being as you enjoy the sunshine in beautiful Mengxi!
As the sun climbs higher in the sky, the UV Index reaches its peak around noon, peaking at a striking 12 between 12:00 PM and 1:00 PM. The day begins with a gentle start—just a 1 at 7:00 AM, gradually rising to 2 by 8:00 AM. By 10:00 AM, the intensity escalates to an 8, followed by a stunning 10 at 11:00 AM. As the clock strikes noon, the UV Index hits its zenith at 12, signaling the strongest solar radiation of the day. The intensity begins to wane, dropping back to 10 at 2:00 PM, before tapering off to 5 at 4:00 PM. As evening approaches, the UV Index gently descends to 1 by 6:00 PM, heralding the end of a radiant day. Stay protected during those peak hours, especially from 11:00 AM to 1:00 PM!
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure levels fluctuate significantly, with the highest risk months occurring from March through August, where the UV Index reaches very high to extreme levels. In March and April, the UV Index peaks at 8 and 10, respectively, with a burn time of just 15 minutes. The most critical months are May and June, with an extreme UV Index of 11 and a burn time of only 10 minutes. This level of exposure persists through July and August, making it essential for both visitors and residents to take precautions, especially during peak sun hours. As summer transitions into fall, the UV Index gradually decreases, but September and October still pose a risk with indices of 10 and 9, requiring moderate sun protection. For January and February, while the UV Index is still classified as high, the burn time extends to 25 minutes, offering a slightly larger margin for sun exposure. Visitors and residents are advised to apply sunscreen, wear protective clothing, and seek shade during the highest UV periods, particularly from March to August.
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 |
| Mengxi | 6 | 6 | 8 | 10 | 11 | 11 | 12 | 12 | 10 | 9 | 6 | 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 |