Last updated: May 3, 2025
In Jianggu, China, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With its Cfa climate, characterized by warm summers and high humidity, the UV levels can soar to dangerous heights, peaking at 13 during midday hours. By being aware of these UV levels, residents and visitors can take proactive measures to protect their skin, ensuring enjoyable outdoor experiences without the risks of overexposure. Whether it’s planning activities in the shade or applying sunscreen regularly, knowledge of the UV Index is vital for a safe and healthy lifestyle in this vibrant city.
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 |
| Jianggu | 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 |