Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Mengxi, China, where the combination of its humid subtropical climate (Cfa) and high UV exposure can significantly impact skin health. Monitoring UV levels helps in preventing sunburn and reducing the risk of long-term skin damage, making it essential for outdoor enthusiasts and casual sunbathers alike. With afternoon UV readings soaring as high as 11, awareness of the potential hazards is paramount for protecting yourself from overexposure during the peak hours of 10 AM to 2 PM. Stay informed and safe while enjoying the sunshine in Mengxi!
The UV Index today follows an engaging pattern, starting from a mild 1 at 07:00, gently rising as the sun gains strength. By 09:00, it surges to 5, but the real peak hits during the midday hours, reaching a scorching 11 at both 12:00 and 13:00. As the afternoon unfolds, the intensity begins to wane, falling to 9 by 14:00, and gradually decreasing to 4 by 16:00. By the time evening rolls around, the index declines to a comfortable 1 by 19:00. It's a perfect reminder to plan outdoor activities smartly during those peak hours, ensuring protection from the sun's powerful rays!
| 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 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 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 | 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 |