Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Longjing, China, especially with its Cfa climate, which brings warm summers and potential sun exposure risks year-round. Being aware of UV levels is essential to prevent sunburn and promote skin health, as damaging rays can lead to serious long-term consequences. In Longjing, typical UV exposure peaks around midday, with values hitting a high of 13—signifying a need for proper sun protection, especially during those hours when outdoor activities are most tempting. Stay informed and safeguard your skin by checking the UV Index regularly!
The UV Index showcases a dynamic rise and fall throughout the day, peaking between 12:00 PM and 1:00 PM with a staggering value of 13. Early risers will notice a gentle start at 7:00 AM with a low index of 1, which quickly escalates as the sun climbs higher. By 10:00 AM, the index hits 8, tending towards its highest point, 11 at 11:00 AM. As the afternoon progresses, it remains at 13 for an hour before gradually tapering off to 4 by 4:00 PM and finally descending to 0 after 7:00 PM. This data emphasizes the importance of sun protection during the midday peak while allowing for safer outdoor activities during the cooler hours.
| 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 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 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 |
The UV Index experiences significant seasonal changes, peaking during the warmer months. High-risk months include March through September, where the UV Index consistently reaches extreme levels (11-13) and the burn time is notably short, at just 10 minutes. The transition into October and November sees a slight decrease in UV exposure but remains in the very high category with a burn time of 15 minutes. During the summer months, particularly from April to August, it's crucial for residents and visitors to take protective measures against sun exposure, such as wearing sunscreen, hats, and protective clothing, especially during midday hours when the sun's rays are most intense. Even in January and December, when the UV Index is lower (7), protection is still advisable as the exposure remains in the high category. Adjusting outdoor activities according to these UV levels can help ensure safety and minimize the risk of sunburn.
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 |
| Longjing | 7 | 9 | 11 | 11 | 13 | 13 | 13 | 12 | 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 |