Last updated: July 2, 2025
Understanding the UV Index in Guyi, China, is crucial for safeguarding your skin and overall health as sun exposure levels can vary significantly throughout the day. With peak UV levels reaching as high as 11 around noon, the potential for sunburn and long-term skin damage dramatically increases, making it essential for residents and visitors alike to be aware of these fluctuations. Guyi's Cfa climate, typified by warm summers and mild winters, can contribute to higher UV exposure risks. By tracking the UV Index regularly, you can take proactive measures to protect yourself and enjoy the outdoors safely while minimizing the risk of harmful UV radiation.
The UV Index today paints a vivid picture of the sun's intensity, peaking sharply at 11 between 12:00 PM and 1:00 PM — a clear sign to seek shade and protect your skin. The morning starts off gently, with values climbing from a pleasant 1 at 7:00 AM to a moderate 5 by 9:00 AM. As the clock strikes 10:00 AM, the intensity ramps up to 7, making it crucial to apply sunscreen for those planning outdoor activities. After hitting the peak, the UV levels begin to taper off, dropping to 7 at 3:00 PM, then sliding to 5 by 4:00 PM. The evening brings relief as values return to a safe 1 by 6:00 PM, ushering in a cool respite from the sun's powerful rays. Enjoy the sunlight, but stay safe!
| 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 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV radiation levels exhibit significant seasonal changes, with high-risk months spanning from March to October. During this period, the UV Index peaks, reaching an extreme level of 11 from May through August, corresponding to a burn time of just 10 minutes. The highest UV exposures occur in April and September, categorized as very high, where 15-minute burn times are recommended. In contrast, the winter months of January, February, November, and December present moderate UV exposure, allowing for longer burn times of 30 minutes. It's crucial for visitors and residents to protect their skin during high-risk months by wearing sunscreen, protective clothing, and sunglasses, especially between late spring and summer, to avoid harmful effects from excessive sun exposure.
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 |
| Guyi | 5 | 5 | 7 | 9 | 11 | 11 | 11 | 11 | 9 | 8 | 5 | 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 |