Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Longjiao, China, where the subtropical Cfa climate brings varied UV exposure throughout the year. With peak UV levels reaching up to 13 around midday, awareness of these fluctuations is key in preventing sunburn and promoting skin health. By keeping an eye on the UV Index, you can better protect yourself from harmful rays, especially during the hottest hours. Whether you're enjoying outdoor activities or simply soaking in the sun, knowing how to manage UV exposure can help you stay safe and healthy in this vibrant locale.
The UV Index starts off modestly at 2 by 07:00, but by 10:00, it skyrockets to a peak of 10, signaling the sun is at its most intense. As we approach 12:00, it reaches a high of 13, prompting the need for sun safety measures. The afternoon sees a slight decline, with values of 12 at 13:00 and dropping to 9 by 14:00. After that, the intensity continues to retract, with the UV Index decreasing to 6 at 15:00 and settling at 4 by 16:00. As the day winds down, the index drops further, hitting 2 by 17:00, before finally descending to 1 at 18:00 and 0 by 19:00. It's a reminder that while enjoying sunlight is delightful, protection is essential during those peak hours!
| 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 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 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 | 0 | low | 45 min |
The UV Index exhibits significant seasonal variations, peaking during the summer months. January sees a moderate UV Index of 7, classified as high, with a burn time of 25 minutes. In February, the index jumps to 9, categorized as very high, decreasing burn time to 15 minutes. The risk escalates sharply in March and April, where values reach 11 and 12, respectively, indicating extreme exposure with burn times reduced to just 10 minutes. The summer months of June, July, and August maintain the highest UV Index of 13, with sustained extreme risk and the same short burn time. As fall approaches, the index gradually declines, with September returning to 11 and October to 10, both classified as very high. November mirrors February with a 9, while December drops back to 7. Residents and visitors are advised to take precautionary measures during February through September, ensuring proper sun protection to minimize the risk of skin damage.
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 |
| Longjiao | 7 | 9 | 11 | 12 | 12 | 13 | 13 | 13 | 11 | 10 | 9 | 7 |
| 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 |