Last updated: June 2, 2025
Awareness of the UV Index is crucial for residents and visitors in Huangtong, China, where intense sun exposure can lead to serious health risks. Understanding the daily UV levels is essential for preventing sunburn and protecting overall skin health, particularly as peak UV values can reach a striking 13 during midday hours. With Huangtong's Aw climate, characterized by warm temperatures and sunny days, it’s imperative to stay informed about UV exposure risks to enjoy the outdoors safely. Whether you're planning a stroll or engaging in outdoor activities, being UV-savvy can help safeguard your skin against harmful effects.
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 |
Throughout the year, UV Index levels fluctuate, with the highest readings observed from March to October, where the Index consistently remains in the extreme category. The peak occurs in May, July, and August, reaching UV Index 14 and necessitating a burn time of just 10 minutes before skin damage can occur. The high-risk months are therefore considered February through October, particularly as exposure risks elevate during this period. As such, it is crucial for visitors and residents to take precautions during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize UV exposure and protect skin health. In contrast, January, November, and December see slightly lower levels, categorized as very high, but precautions should still be observed with burn times extending to 15 minutes.
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 |
| Huangtong | 9 | 11 | 12 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 8 |