Last updated: July 2, 2025
In Heishantou, China, understanding the UV Index is crucial for protecting your skin and overall health. With its distinct Dwc climate, the area experiences varying UV levels throughout the day, peaking at a high of 9 around noon. Being aware of these UV levels is essential for sunburn prevention and long-term skin health, as even moderate exposure can lead to harmful effects. As you enjoy outdoor activities, knowing when the UV index is high can help you take necessary precautions, ensuring you and your loved ones stay safe while soaking up the sun.
The UV Index displays a dynamic pattern throughout the day, peaking at 12:00 PM with a striking value of 9, indicating very high risk for harm from unprotected sun exposure. The day begins with a modest reading of 2 at 7:00 AM, steadily climbing as the sun rises. By 10:00 AM, the index reaches 7, signaling a warning to seek shade during midday hours. As the clock strikes 11:00 AM, it escalates to 8, and peaks at 12:00 PM. Post-peak, a gentle decline follows, with values dropping to 5 by 3:00 PM and tapering to a low of 1 by 6:00 PM. It’s a reminder that while the sun can be inviting, precautions should be taken as its potency intensifies through the day.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 7 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 5 | moderate | 30 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 |
Throughout the year, the UV Index demonstrates clear seasonal changes, significantly increasing from January to July. The high-risk months for UV exposure are May through August, where the UV Index reaches 7 to 9, indicating very high levels of UV radiation. During these months, the recommended burn time drops to just 15 minutes, emphasizing the importance of sun protection strategies. In contrast, the winter months of December, January, and February have a low exposure category with an index of 1 to 2 and longer burn times of 45 minutes, allowing for safer outdoor activities. It is advisable for both visitors and residents to take precautions, especially between March and August, by wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Heishantou | 1 | 2 | 4 | 5 | 7 | 8 | 9 | 8 | 5 | 4 | 2 | 1 |
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 |
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 |