Last updated: June 2, 2025
In Nanzhihui, China, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With a climate that experiences seasonal variations typical of the Cwa zone, residents and visitors must be aware of the daily UV levels, especially during the peak hours from 11:00 AM to 1:00 PM, when the UV Index can reach a striking 11. By staying informed about UV exposure risks, you can take proactive measures to protect your skin and enjoy the beautiful sunny days without compromise. Whether you’re planning outdoor activities or just spending time outdoors, knowing the UV Index helps keep you safe under the sun!
As the sun rises, the UV Index begins its ascent, peaking at 11 between noon and 1 PM, signaling a moment when sun protection is vital. Early in the morning, the index starts low, with a mere 1 at 7 AM, gradually climbing to a moderate 4 by 9 AM. By 10 AM, the levels ramp up to 7, warning of increasing risk as lunchtime approaches. The intensity then hits its zenith at 12 PM and 1 PM with an alarming 11, before gradually tapering off. By 3 PM, the index drops to 8, descending further to 5 by 4 PM. As evening approaches, the UV radiation wanes, with 3 at 5 PM and returning to a safe 1 by 7 PM. Stay sun-safe and enjoy the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | 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 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index shows notable seasonal variations that affect sun exposure and risk for skin damage. High-risk months are typically from April to August, when the UV Index peaks at 11, indicating extreme exposure levels with a burn time of just 10 minutes. March also presents a high risk with an index of 7, while February's index of 6 marks the onset of significant UV exposure. As summer transitions to fall, the risk gradually decreases; however, September and October still showcase very high levels with indexes of 10 and 8, respectively. To promote safety, it is advisable for both visitors and residents to limit sun exposure during peak hours, wear protective clothing, and apply sunscreen consistently, particularly in the spring and summer months when UV levels are the highest. During the winter months, UV exposure is comparatively moderate to low, allowing for safer outdoor activities.
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 |
| Nanzhihui | 4 | 6 | 7 | 9 | 11 | 11 | 11 | 11 | 10 | 8 | 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 |