Last updated: June 2, 2025
Understanding the UV Index in Chengwu, China, is essential for safeguarding your skin and overall health. Awareness of UV levels plays a crucial role in preventing sunburn and reducing the risk of long-term skin damage. With a humid subtropical climate (Cwa), Chengwu experiences intense sun exposure, particularly during the midday hours when the UV index peaks at a high of 10. By knowing the local UV index, residents and visitors can make informed decisions about sun protection and enjoy outdoor activities safely, ensuring their skin remains healthy while soaking up the sun.
The UV Index for today presents a sharp rise in sunlight intensity as the day unfolds. Starting at a mild level of 1 at 7:00 AM, the index quickly escalates, reaching a moderate 3 by 8:00 AM. It continues its upward trend, peaking at an intense 10 between noon and 1:00 PM, indicating a strong need for sun protection. As the afternoon progresses, the UV Index declines to 8 at 2:00 PM, before tapering off further to 6 by 3:00 PM. The evening sees a gentle descent, settling back to a 1 by 6:00 PM. This data highlights the crucial hours for outdoor activities, emphasizing vigilance against UV exposure, particularly during midday when the sun's rays are at their fiercest.
| 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 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | 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 indicate a significant increase in UV exposure from January to July, peaking in July with an extreme UV Index of 11, where burn time decreases to just 10 minutes. The month of April also marks a critical transition, rising to a very high UV Index of 8, urging heightened caution as spring progresses. The high-risk months are predominantly from April through September, with particularly notable risks in June and July. During these months, residents and visitors should take precautions, such as seeking shade and applying sunscreen frequently, especially during midday hours. As the months turn to late summer and fall, UV levels gradually decline, but it's wise to remain vigilant as October still poses a high risk, with a UV Index of 7. Overall, awareness and protection are essential to ensure safe outdoor activities throughout the year.
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 |
| Chengwu | 3 | 5 | 6 | 8 | 9 | 10 | 11 | 10 | 8 | 7 | 4 | 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 |