Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Huikou, China, where the climate often presents heightened exposure risks. With UV levels peaking at 11 around noon, awareness of these measurements is essential for sunburn prevention and maintaining overall skin health. As a city in the humid subtropical climate zone (Cfa), Huikou experiences significant sunlight throughout the year, making it vital to take protective measures during peak hours. Stay informed and protect yourself against harmful UV rays while enjoying the beautiful outdoor environments Huikou has to offer!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it climbs to a moderate 3, signaling the approach of midday intensity. The peak is reached at 12:00 PM with a notable 11, indicating the need for sun protection. Throughout the afternoon, the index gradually declines: 10 at 1:00 PM and 8 by 2:00 PM, before tapering off to 6 at 3:00 PM. As the sun begins its descent, the UV Index drops significantly to 3 by 4:00 PM, then gently fades to 2 at 5:00 PM. By 6:00 PM, it settles at 1 and finally reaches 0 as evening approaches at 7:00 PM. This data exemplifies the importance of sun safety during the peak hours of 10:00 AM to 2:00 PM when UV exposure is at its highest. Stay protected and enjoy the sunshine!
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the summer months. High-risk months include May through August, where the UV Index consistently reaches extreme levels of 11 or 12 and the burn time is as brief as 10 minutes. As such, residents and visitors should take precautionary measures during these peak months, such as seeking shade, wearing protective clothing, and applying sunscreen regularly. In contrast, the UV Index lowers during the fall and winter months, with January and November presenting high levels but more extended burn times of up to 25 minutes. It remains essential for everyone to stay informed about daily UV levels and adapt their sun protection habits accordingly, especially during the highest risk periods.
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 |
| Huikou | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 12 | 10 | 8 | 6 | 5 |
| 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 |