Last updated: August 1, 2025
Understanding the UV Index in Nanzhihui, China is crucial for anyone looking to protect themselves from the sun's harmful rays. With peak UV levels reaching an intense 11 around noon, awareness of these daily fluctuations is vital for preventing sunburn and maintaining long-term skin health. Given Nanzhihui's Cwa climate, which experiences hot summers, the risk of overexposure increases, making it essential to stay informed about UV conditions. By knowing the UV Index, residents and visitors alike can enjoy the outdoors safely while minimizing the risk of skin damage.
The UV Index for the day presents a fascinating variation as the sun climbs higher in the sky. Starting from a gentle 1 at 07:00, the intensity gradually escalates, reaching a moderate 4 by 09:00. The peak hits at 12:00 and 13:00, soaring to an intense 11, indicating a significant risk of harm from unprotected sun exposure. As the afternoon unfolds, the index begins to decline, tapering to 8 at 15:00, and by the evening, it plummets back to a 1 by 18:00. This data serves as a reminder to stay vigilant about sun safety during those peak hours when UV exposure is at its highest!
| 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 | 6 | high | 25 min |
| 11:00 | 9 | 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 | 1 | 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 |