Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Hecun, China, where the climate features distinct seasonal variations that can lead to varying levels of UV exposure. Awareness of UV levels not only helps in preventing sunburn and preserving skin health, but it also empowers individuals to take proactive measures in protecting themselves from harmful radiation. With the peak UV Index reaching 10 during midday hours, Hecun poses significant sun exposure risks, particularly between 11:00 AM and 1:00 PM. By staying informed about the UV Index, you can enjoy the beautiful sunny days while keeping your skin safe!
The UV Index throughout the day paints a vivid picture of sun intensity. Starting at a mild 1 at 7:00 AM, the index gradually climbs, reaching a more noticeable 3 by 8:00 AM. The real surge occurs between 9:00 AM and 12:00 PM, where it peaks at 10—a crucial time for sun protection. After that, it begins to gently decline, with 9 at 1:00 PM, 8 at 2:00 PM, and dropping further to 6 by 3:00 PM. As the sun starts its descent, the index sees a steady fall, ending at a comfortable 1 by 6:00 PM, making the later hours much safer for outdoor activities. Pay attention to the height of UV levels around midday for optimal sun safety!
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | 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 | 1 | low | 45 min |
Throughout the year, UV exposure changes significantly, with the highest UV Index occurring in the summer months of May to August, where the index reaches a peak of 10 and poses a very high risk of harm from unprotected sun exposure, with a burn time of just 15 minutes. For those living in or visiting the area, March also marks the beginning of heightened caution as the UV Index rises to 6, indicating high risk, and continues to climb throughout the spring into summer. April sees an index of 8, and by October, the index decreases to 7, still presenting a high risk for sunburn with a burn time of 25 minutes. Residents and visitors should take precautions during these months, particularly from April to September, including wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize sun exposure and reduce the risk of skin damage. For the winter months of January, February, November, and December, while the UV Index is lower (ranging from 3 to 5), moderate exposure still requires some awareness to ensure skin protection.
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 |
| Hecun | 3 | 5 | 6 | 8 | 10 | 10 | 10 | 9 | 9 | 7 | 4 | 3 |
| 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 |