Last updated: June 2, 2025
In Heishantou, China, staying aware of the UV Index is crucial for protecting your skin health and preventing sunburn. Given the region's Dwc climate, residents and visitors experience varying UV exposure throughout the day, with peak levels reaching as high as 8 between noon and early afternoon. Understanding these UV levels is essential for taking appropriate precautions, particularly during the sun's most intense hours. As you enjoy outdoor activities in picturesque Heishantou, being informed about UV risks can help you make safer choices and keep your skin shielded from harmful effects.
As the day unfolds, the UV Index climbs steadily, reaching its peak between 11:00 AM and 1:00 PM with a high of 8. Early risers will find a mild 2 at 7:00 AM, but by 9:00 AM, the intensity ramps up to a more noticeable 5. The sun's rays become particularly strong at 10:00 AM, soaring to 7, and for those out in the midday sun, it’s crucial to stay protected as the UV Index remains at 8 until 1:00 PM. As the afternoon rolls in, the index starts to decline, dipping to 6 at 2:00 PM, and gradually dropping further to a 3 by 4:00 PM. By the evening, the UV Index settles into a low range of 1 as the sun begins to set, reminding us to always be mindful of UV exposure throughout the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | 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 |