Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Zhengji, China, where the climate's humid subtropical character (Cwa) can lead to significant sun exposure. Being informed about UV levels not only helps in preventing painful sunburns, but it also plays a vital role in maintaining long-term skin health. With peak UV Index values soaring to 10 during midday—indicating a very high risk of harm from unprotected sun exposure—it's essential for individuals to take precautions. This guide to the UV Index in Zhengji will empower you to enjoy the sunny days while keeping your skin protected from the potential risks associated with excessive UV exposure.
The UV Index for the day shows a significant rise as the sun climbs higher in the sky. Starting at a modest 1 at 07:00, the index ramps up, reaching 3 by 08:00. By 09:00, it climbs to 5, and by 10:00, it reaches 7—indicating that sun safety precautions should be in place. The index peaks at a striking 10 at 12:00, signaling extremely high levels of UV radiation. After this peak, the UV Index begins to decline, dropping to 9 at 13:00 and gradually decreasing to 4 by 16:00. As the sun sets, the index returns to 1 by 18:00, making the evening hours much safer for outdoor activities. Be mindful of the sun's intensity today!
| 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 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 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, the UV Index shows notable seasonal changes, with the highest risk typically occurring during the summer months. From March to October, the UV Index rises, peaking at 10 during the height of summer from May to August, indicating a very high exposure category and a reduced burn time of only 15 minutes. Conversely, the months of January, February, November, and December present a moderate risk with lower UV Index values (3-5) and longer burn times (30 minutes). Visitors and residents are strongly advised to take precautionary measures during April to September, when the UV Index reaches its highest levels. It is essential to wear sun protection, such as sunscreen, hats, and UV-blocking clothing, and to seek shade, especially during peak sun hours, to reduce the risk of sunburn and long-term skin damage.
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 |
| Zhengji | 3 | 5 | 7 | 8 | 10 | 10 | 10 | 10 | 8 | 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 |