Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Yinjiacheng, China, where sun exposure can reach peak levels that pose significant risks to skin health. The UV Index indicates the strength of ultraviolet radiation, helping you to take proper precautions against sunburn and long-term skin damage. With Yinjiacheng's Dwb climate, which features hot summers and cold winters, awareness of daily UV levels is particularly vital during the warmer months, when sun exposure increases. On days like those observed here, where the UV index reaches a high of 12 at noon, making informed choices about sun protection can help you enjoy the sunshine safely.
As the day unfolds, the UV Index climbs steadily, peaking at a stunning 12 around noon. Starting from a modest 1 at 7:00 AM, the intensity escalates, reaching a vital 10 by 11:00 AM. The afternoon continues with high values, with 12 sustained from 12:00 PM to 1:00 PM, before gradually tapering off. By 4:00 PM, the index drops to 6, and as evening approaches, it cools to a safe 1 by 7:00 PM. For those venturing outdoors, it’s crucial to take precautions during the peak hours from 10:00 AM to 2:00 PM, when the sun's rays are strongest.
| 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 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal variation, peaking during the summer months. January and February have moderate UV levels (Index 4-5), allowing for 30 minutes of safe sun exposure. However, starting in March, the risk increases with a high UV Index of 7 and a reduced burn time of 25 minutes. As we transition into April and May, the risk escalates dramatically, reaching very high levels of 10-12, requiring protective measures with only 10-15 minutes of safe exposure. The extreme conditions continue through July and August, where the UV Index peaks at 13, emphasizing the importance of sun safety. In September and October, the UV Index remains very high, while November and December offer more moderate exposure levels again at 5 and 3 respectively. For visitors and residents, it’s critical to stay informed about UV changes, particularly between March and October, to ensure sun safety by wearing sunscreen, protective clothing, and avoiding peak sun hours.
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 |
| Yinjiacheng | 4 | 5 | 7 | 10 | 12 | 12 | 13 | 11 | 10 | 8 | 5 | 3 |
| 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 |