Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Zhangjiayuan, China, as it plays a significant role in protecting skin health and preventing sunburn. With a climate characterized by humid subtropical conditions, the region can experience elevated UV levels, particularly around midday when values peak at a striking 11. This means that effective awareness and proactive measures against UV radiation are essential to safeguard your skin, especially during the summer months when outdoor activities are common. Stay informed about daily UV levels and take necessary precautions to enjoy the beautiful outdoor scenery without compromising your health!
The UV Index shows a dynamic fluctuation throughout the day, peaking during the late morning to early afternoon hours. Starting at a mild 2 at 07:00, the index steadily rises, reaching a notable 11 by 11:00, where it remains steady through 12:00 and 13:00. This signifies a time of heightened sun intensity, urging outdoor enthusiasts to take precautions. As the afternoon progresses, the index begins to decline, dipping to 8 at 14:00 and further to 6 by 15:00. By the late afternoon, the UV levels drop significantly, finishing off the day with a gentle 0 at 19:00. Overall, the hourly data emphasizes the importance of sun safety during the mid-day peak hours.
| 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 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 | 0 | low | 45 min |
As the seasons change, so do UV levels, significantly impacting sun safety. January starts with a UV Index of 4, categorized as moderate, allowing for approximately 30 minutes of unprotected sun exposure. This rises sharply through February and March, reaching 6 (high) and 8 (very high), respectively, with burn times dropping to 25 and 15 minutes. The peak months, July and August, see an extreme UV Index of 11, where the burn time is reduced to a mere 10 minutes. As fall approaches, the UV Index decreases to 10 in September, then 8 in October. By November and December, the UV Index returns to 6 and 4, respectively, allowing for safer exposure times of 25 and 30 minutes. Visitors and residents should remain vigilant during the high-risk months of March to October, especially in the peak summer months, and take appropriate precautions such as wearing sunscreen, protective clothing, and seeking shade during peak 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 |
| Zhangjiayuan | 4 | 6 | 8 | 10 | 10 | 10 | 11 | 11 | 10 | 8 | 6 | 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 |