Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Xi Xian Chengguanzhen, China, where the subtropical Cfa climate contributes to significant sun exposure, particularly during the peak hours of sunlight. High UV levels can lead to sunburn and long-term skin health issues, making awareness essential for enjoying the outdoors safely. With midday UV Index values often reaching as high as 11, it's vital for locals and visitors alike to monitor UV levels to protect themselves from harmful effects while embracing the region's vibrant outdoor lifestyle. Stay informed and take the necessary precautions to keep your skin healthy!
The UV Index offers a clear glimpse into the sun's intensity throughout the day, peaking dramatically during midday. Starting at a mild 1 at 07:00 and gradually rising, it hits 3 by 08:00. The real surge occurs around 10:00, when the UV Index reaches 8, followed by a striking maximum of 11 at 12:00, indicating very high levels of sun exposure. As the afternoon progresses, the intensity starts to taper, descending to 6 by 15:00 before retreating to 2 by 17:00. As evening approaches, the UV levels soften, returning to 1 by 19:00. Overall, this data underscores the need for sun protection during peak hours, particularly between 10:00 and 14:00.
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 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 |
Throughout the year, the UV Index varies significantly, indicating changing levels of sun exposure risk. High-risk months generally span from March to October, where values soar to extreme levels, particularly in June, July, and August, with a consistent UV Index of 11 that allows for a burn time of only 10 minutes. Visitors and residents should take precautionary measures during these months by seeking shade, wearing protective clothing, and applying sunscreen regularly. As the seasons shift, April and May also show very high levels, necessitating similar precautions. The winter months of January, February, November, and December present a moderate risk, allowing for safer sun exposure but still warranting caution. Staying informed and taking proactive steps can help everyone enjoy outdoor activities while minimizing sun-related health risks.
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 |
| Xi Xian Chengguanzhen | 4 | 5 | 7 | 8 | 10 | 11 | 11 | 11 | 10 | 8 | 5 | 4 |
| 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 |