Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Jinshan, China, where the subtropical climate brings both beauty and the potential for high sun exposure. As UV levels can rise dramatically—reaching a peak of 13 around midday—being aware of these fluctuations is vital in preventing sunburn and protecting skin health. With the risk of skin damage increasing significantly during peak hours, knowing when to seek shade or apply sunscreen is essential for enjoying the outdoors safely. Whether you’re hitting the beach or simply taking a stroll, keeping an eye on the UV Index can help you make informed decisions about sun safety in this vibrant coastal area.
The UV Index during the day reveals a notable peak in sun exposure. Starting at 07:00 with a gentle 1, it gradually climbs to 2 by 08:00. As the sun rises higher, the index surges dramatically, hitting 5 at 09:00, and reaching a striking 8 by 10:00. The intensity peaks at 12:00 with a scorching 13, remaining high until 13:00. After that, it starts to decline, returning to 11 at 14:00 and falling to 8 by 15:00. As the afternoon wanes, the index drops to 5 at 16:00, and finally settles back to 1 by 18:00 and 19:00. This data highlights the importance of sun safety measures during the midday hours when UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 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 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
During the year, UV exposure significantly fluctuates, reaching its peak during the summer months of June through August, where the UV Index hits its highest at 14 in July. The high-risk months for UV exposure range from February through October, with the UV Index consistently in the extreme category of 11 to 14 and a burn time of just 10 minutes. Visitors and residents are advised to take precautions, especially during these months, by wearing protective clothing, applying sunscreen, and seeking shade to minimize the risks of UV-related skin damage. In contrast, January, November, and December present very high levels (UV Index of 8 to 9) but allow for slightly longer exposure times of 15 minutes. Therefore, it remains essential to stay vigilant and protect yourself from UV rays throughout the year, particularly in the high-risk months.
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 |
| 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 |
| Jinshan | 8 | 11 | 12 | 13 | 13 | 13 | 14 | 13 | 13 | 12 | 9 | 8 |