Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Beidaihe, China, where the stunning coastline meets a diverse climate. With peak UV levels reaching as high as 8 during midday hours, being aware of these values can significantly help in preventing sunburn and protecting overall skin health. Beidaihe’s temperate climate, characterized by warm summers and ample sunshine, presents unique challenges, making it essential to stay informed about UV exposure risks. Whether you're lounging on the beach or enjoying outdoor activities, knowing the UV Index allows you to take proactive measures for your skin’s well-being.
The UV Index chart for the day reveals a dynamic range of sun exposure, peaking between 11:00 AM and 1:00 PM with a maximum value of 8. As the sun rises, the index steadily climbs from 2 at 7:00 AM to a robust 5 by 9:00 AM, before reaching its zenith at midday. From noon onward, the index remains consistently high at 8, urging outdoor enthusiasts to take precautionary measures against sunburn. However, as the afternoon progresses, the index begins to taper off, dropping to 6 at 2:00 PM and further decreasing to 1 by 5:00 PM. As evening sets in, the UV levels cool down significantly, maintaining a lingering 1 until 7:00 PM, making it a perfect time for a leisurely stroll without the risk of overexposure.
| 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 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the year progresses, the UV Index shows notable seasonal changes, indicating varying levels of sun exposure and associated health risks. January and December have a low exposure category with an index of 2, allowing for 45 minutes of safe sun exposure. By February, the UV Index rises to 4, marking a shift to moderate exposure, while March and April reach a high exposure level of 6 and 7, respectively, with a reduced burn time of 25 minutes. The months of May and June hit a very high index of 8 and 10, requiring more caution with just 15 minutes of safe exposure. July presents the greatest risk, with an extreme UV Index of 11, necessitating vigilance with only 10 minutes of burn time. As summer wanes, August sees a slight decrease to 9, followed by high exposure levels again in September (7) and October (6), with increased burn times of 25 minutes. The risk lowers again in November. Visitors and residents are advised to take appropriate precautions, such as wearing sunscreen, protective clothing, and hats, especially during the high-risk months of May through August when the UV Index peaks.
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 |
| Beidaihe | 2 | 4 | 6 | 7 | 8 | 10 | 11 | 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 |