Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Chengkan, China, where high levels of ultraviolet radiation can pose serious risks to skin health. With the potential for severe sunburn and long-term skin damage, being aware of UV levels helps individuals take necessary precautions during peak exposure times. Nestled in a Cfa climate zone, Chengkan experiences a range of UV exposures, notably peaking between 10 AM and 2 PM, when values can soar to 12, indicating a very high risk of harm. Stay informed and ensure your skin's safety by regularly checking the local UV Index!
As the sun rises, the UV Index begins its ascent, peaking impressively at 12 around noon. Early hours bring mild levels of UV exposure, starting at a manageable 2 at 7:00 AM and climbing steadily to reach 4 by 8:00 AM. The intensity escalates dramatically, hitting 9 by 10:00 AM, just before reaching the day’s maximum of 11 at 11:00 AM. From about 12:00 PM to 1:00 PM, the index remains at peak levels of 12, signaling the need for sun protection. Following the midday sun, UV levels begin to decline, tapering off to 9 by 2:00 PM, and gradually decreasing to 1 by 6:00 PM. As dusk approaches, the UV Index drops to 0 by 7:00 PM, offering a gentle close to the day’s solar intensity. Stay vigilant and shield yourself during those peak hours for a safe and enjoyable time outdoors!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | 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 | 0 | low | 45 min |
Throughout the year, the UV Index varies significantly, indicating seasonal changes in sun exposure risk. The high-risk months are from March to September when the UV Index reaches very high to extreme levels—peaking at 12 in May through August, with a burn time of just 10 minutes. Visitors and residents should particularly exercise caution during these months by seeking shade, wearing protective clothing, and applying sunscreen regularly. As winter approaches, the UV Index decreases, with January and February remaining high but allowing for longer burn times of 25 minutes. In contrast, October marks a return to very high, urging continued sun safety practices. Overall, understanding these UV trends is essential for protecting skin health year-round.
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 |
| Chengkan | 6 | 7 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 9 | 6 | 5 |
| 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 |