Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Xujia, China, where the combination of warm summers and high humidity in a Cwa climate zone increases the risk of sun exposure. By monitoring UV levels, you can take proactive steps to prevent sunburn and protect your skin health. With peak UV Index readings reaching as high as 10 during midday, awareness of these fluctuations can empower you to enjoy the outdoors safely, minimizing the risk of long-term skin damage. Stay informed and protect yourself from the sun's harmful effects!
As the sun rises, the UV Index begins its steady ascent, starting at a modest 2 by 7:00 AM. By 8:00 AM, it climbs to 4, signaling the start of a more intense day. The index peaks at a striking 10 between 11:00 AM and 12:00 PM, indicating the highest levels of ultraviolet radiation and highlighting the need for sun protection. As the afternoon unfolds, the UVI gradually declines from 9 at 1:00 PM to 5 by 3:00 PM, before retreating to a low of 1 by 5:00 PM and remaining stable through the evening. This hourly progression not only reflects the sun's power but also serves as a reminder to stay vigilant and protect your skin during the peak hours of exposure.
| 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 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, highlighting the importance of sun safety for both visitors and residents. From January to February, the UV levels remain in the moderate range (3-4), allowing for relatively safe outdoor exposure with a burn time of 30 minutes. However, by March, the UV Index escalates to high (6) with a reduced burn time of 25 minutes, signaling a shift. The peak risk occurs from April to August, with UV Index levels reaching very high (9-10) and extreme (11) ratings, particularly in July and August, where the burn time drastically reduces to just 10 minutes. As autumn approaches, UV exposure decreases, dropping to high in October and moderate levels again in November and December. It is crucial for everyone to take appropriate precautions, especially during the high-risk months of April to August, by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak hours to minimize sunburn risks.
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 |
| Xujia | 3 | 4 | 6 | 9 | 9 | 10 | 11 | 11 | 8 | 7 | 4 | 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 |