Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Zhangji, China, where sunshine is abundant and the climate leans towards humid subtropical conditions (Cwa). Knowing the UV levels helps in preventing sunburn and protecting skin health, ensuring you enjoy the outdoors safely. With peak UV readings reaching up to 11 between noon and early afternoon, it's essential to take proactive measures against overexposure, especially during the summer months when the sun's intensity poses a significant risk. Stay informed and shield yourself from harmful UV rays to make the most of Zhangji's sunny days!
The UV Index data reveals a clear pattern in solar exposure throughout the day. Morning rays begin gently, with a maximum of 2 at 07:00, steadily rising to 4 by 08:00. As the sun climbs higher, the index peaks at an impressive 11 at 12:00, indicating a moment of intense UV radiation. Temperatures remain elevated with a 10 at 11:00 and 13:00, before gradually declining to 8 by 14:00. The afternoon light softens, dropping to 6 by 15:00, then continues to retreat as the sun sets—falling to 3 at 16:00, 2 at 17:00, and reaching 1 by 18:00 and 19:00. This data underscores the importance of protecting your skin during the peak hours, especially between 10:00 and 14:00, when the UV Index is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 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 exhibits significant seasonal variation, with the most intense exposure occurring in the summer months. From June to August, the UV Index reaches its peak at 11, falling into the extreme category, where burn time is merely 10 minutes. Conversely, from January to March, the levels are moderate, ranging from 3 to 7, requiring 30 minutes to burn. Notably, the high-risk months are April through September, during which the index continually exceeds 8, indicating a need for strong sun protection measures. Visitors and residents are strongly advised to seek shade, wear protective clothing, and apply sunscreen during peak hours, particularly from late spring to early fall, to mitigate the risks associated with overexposure.
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 |
| Zhangji | 4 | 5 | 7 | 9 | 10 | 11 | 11 | 11 | 9 | 7 | 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 |