Last updated: July 2, 2025
Understanding the UV Index is crucial for staying safe and healthy in Bailian, China. With a Cfa climate that experiences a notable amount of sunshine throughout the year, being aware of UV levels can significantly reduce the risk of sunburn and long-term skin damage. Daily UV readings fluctuate, peaking at 12 between noon and 1 PM, indicating that even short exposures during these hours can lead to harmful effects. By staying informed about the UV Index, you can better protect your skin and enjoy the beautiful outdoors while minimizing risks associated with high UV exposure.
At dawn, the UV Index starts low at 1 by 7:00 AM, providing a gentle reminder of the sun's presence. As the morning progresses, the index climbs to 3 by 8:00 AM, and then peaks at 12 around noon, signaling intense sun activity. The sun's rays are strongest at 11:00 AM with a maximum of 10, making it crucial to protect your skin during this time. Though the UV Index begins to decline after midday, it remains significant at 11:00 AM and 9 by 2:00 PM. By the late afternoon, the numbers drop to 4 at 4:00 PM and further descend to 1 by 6:00 PM. Plan your sun exposure wisely, taking care to avoid the peak hours when protection is vital!
| 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 | 10 | very high | 15 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 |
The seasonal UV changes reveal a significant increase in ultraviolet exposure from January through August, peaking during the summer months of June and July with a UV Index of 12, categorized as extreme. High-risk months include March through August, where the UV Index consistently reaches very high to extreme levels, leading to substantially reduced burn times ranging from 10 to 15 minutes. Residents and visitors are advised to exercise caution during these months by seeking shade, wearing protective clothing, applying sunscreen generously, and avoiding prolonged sun exposure, especially during peak hours around noon. As the year progresses, UV levels drop, with November and December returning to moderate levels, 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 |
| 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 |
| Bailian | 5 | 7 | 8 | 10 | 10 | 11 | 12 | 12 | 10 | 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 |