Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Ruanyitu, China, where the subtropical Cfa climate brings warm summers that increase sun exposure risks. Awareness of UV levels not only helps prevent painful sunburn but also plays a vital role in maintaining long-term skin health. During the peak hours of 11 AM to 1 PM, the UV Index can soar to a striking 12, signaling a high risk of harm from unprotected sun exposure. With this knowledge, locals can take proactive measures to protect themselves and enjoy the sunny days while minimizing the risk of skin damage.
The UV Index on this sunny day showcases a striking pattern, starting from a mere 1 at 07:00 and steadily climbing as the sun rises. By 09:00, it reaches 5, indicating an increasing need for sun protection. The peak occurs at 12:00, where it soars to a blistering 12—a clear reminder to seek shade and apply sunscreen. The intensity begins to wane in the afternoon, dropping to 9 at 14:00 and further declining to 4 by 16:00. As evening approaches, the index gently falls back to 1 by 19:00, marking the end of a day characterized by heightened sun exposure. Stay safe under the sun!
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 | 11 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 7 | high | 25 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 experiences significant seasonal changes, peaking during the summer months. High-risk months include March to August, with particularly concerning levels of UV radiation reached in June and July, where the index ranges from 11 to 12 and falls under the extreme exposure category, allowing for burn times as quick as 10 minutes. Residents and visitors are strongly advised to take precautions during these months, including wearing sunscreen, protective clothing, and seeking shade, especially during midday hours. As the year progresses toward winter, the UV levels decrease, but attention to January and February still remains important with moderate to high levels that warrant protective measures. By staying informed and proactive during these higher UV periods, individuals can significantly 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 |
Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
Ruanyitu | 5 | 7 | 8 | 10 | 9 | 11 | 12 | 11 | 10 | 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 |