Last updated: June 2, 2025
Being aware of the UV Index is essential for residents and visitors in Chendian, China, where strong sunlight can pose significant risks to skin health. Understanding UV levels is crucial for preventing sunburn and reducing the long-term effects of sun exposure, such as skin cancer. Chendian's Cfa climate features warm summers, leading to elevated UV exposure, particularly during midday hours when the index can soar to 10. Stay informed about the UV Index to protect yourself and enjoy the sun safely!
As the day unfolds, the UV Index rises steadily, peaking sharply at 11:00 AM and maintaining a high level of 10 until 1:00 PM. Early risers will find the morning sun relatively mild, with a gradual increase from 1 at 7:00 AM to 3 by 8:00 AM, and then it really kicks into gear, reaching 5 by 9:00 AM. The intensity of the rays begins to diminish after the midday peak, with readings declining to 9 at 2:00 PM and further down to 6 at 3:00 PM. As the sun starts its descent, the UV levels drop significantly, falling to 4 by 4:00 PM and landing at 1 by 6:00 PM, ensuring a cooler, safer end to the day. It's crucial to protect your skin during those peak hours, particularly between 10 AM and 1 PM, to avoid overexposure!
| 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 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | 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 |
As the year progresses, UV Index levels exhibit significant seasonal fluctuations, impacting the risk of overexposure to UV radiation. The highest risk months are from March to August, peaking in July with an extreme index of 12, where the burn time is reduced to just 10 minutes. Visitors and residents should take necessary precautions during this period, including wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure, particularly during peak hours. As we transition into September and October, the UV index remains at very high levels, though slightly reduced. In contrast, November and December experience lower UV levels, categorized as high and moderate, respectively, allowing for safer outdoor activities with slightly longer burn times. Awareness of these changes is crucial for maintaining 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 |
| Chendian | 5 | 5 | 8 | 9 | 10 | 10 | 12 | 11 | 10 | 8 | 6 | 4 |
| 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 |