Last updated: June 2, 2025
Understanding the UV Index in Chengjiao, China is crucial for maintaining skin health and preventing sunburn. As the climate here falls within the Dwb zone, residents and visitors should be particularly aware of peak UV exposure risks, especially during the midday hours when the index can reach as high as 8. With UV levels rising from morning to afternoon, knowing when to seek shade or apply sunscreen can make a significant difference in protecting your skin. Stay informed and enjoy the outdoors safely by keeping an eye on the UV Index!
As the sun rises, the UV Index begins to climb, peaking at a maximum of 8 between 11:00 AM and 12:00 PM. This midday period is crucial for sun safety, with the index suggesting a high risk of harm from unprotected sun exposure. Starting from a mild 3 at 7:00 AM, the index escalates to a moderate 6 at 9:00 AM, and then swiftly reaches 7 by 10:00 AM. After hitting its zenith, the UV levels gradually decline to 6 by 2:00 PM and then continue to drop, falling to 1 by 5:00 PM and remaining low into the evening. Remember, during the peak hours, it’s essential to seek shade, wear protective clothing, and apply sunscreen to minimize the risks associated with UV radiation. The day's progression underscores the significance of UV awareness to ensure both safety and enjoyment in the sun.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | 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 |
During the year, the UV Index shows significant seasonal variations, with higher risk of UV exposure primarily from April to September. The months of May through July pose the highest risk, with a UV Index of 8-9, classified as very high, where the burn time is as little as 15 minutes. March and October mark a transition with a moderate UV Index of 4, allowing for a burn time of 30 minutes. In contrast, the winter months (January, February, November, and December) present a low UV Index (1-2) where individuals can safely remain exposed for up to 45 minutes. Visitors and residents are advised to take extra precautions with sun protection, such as applying sunscreen, wearing protective clothing, and seeking shade during the peak times in high-risk months to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chengjiao | 2 | 2 | 4 | 6 | 8 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| 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 |
| 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 |