Last updated: June 2, 2025
In Hengfan, China, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels can help you prevent sunburn and maintain long-term skin health, especially during peak hours when the index soars. With Hengfan's Cfa climate, characterized by significant sunlight and varying UV exposure risks throughout the day, it’s essential to stay informed. For instance, the UV Index reaches a maximum of 12 at noon, signaling extreme conditions where unprotected skin can incur damage in minutes. Whether you're enjoying the outdoors or commuting, keeping an eye on the UV Index can make all the difference in safeguarding your health!
The UV Index paints a vivid picture of the sun's intensity throughout the day. Starting at 07:00, the index is a modest 2, gradually climbing to 4 by 08:00. The real heat kicks in by 09:00, reaching 7, and peaks at a blistering 12 by 12:00. This is the moment to slather on sunscreen and find shade, as the UV levels remain dangerously high at 11 until 13:00. As the afternoon progresses, the index begins to dip—falling to 9 by 14:00 and then to 6 at 15:00. By 16:00, it further decreases to 3, eventually winding down to a gentle 1 by 18:00 and 0 by 19:00. This data beautifully illustrates the importance of protecting your skin during the peak hours of UV radiation, especially between 10:00 and 14:00 when the sun is at its fiercest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | 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 |
The UV Index demonstrates significant seasonal variation, peaking during the summer months. From January to February, the UV levels are high (index 6-7) with a burn time of 25 minutes. As spring approaches, the index rises sharply, reaching 9 in March and hitting a maximum of 12 in June and July, categorized as extreme, where the burn time decreases to just 10 minutes. Visitors and residents should be particularly cautious during the months of May through August, when the risk is highest; wearing protective clothing and applying sunscreen regularly is essential. As autumn arrives, the index starts to decrease, with a very high rating of 10 in September and lowering further to 6 by November. December offers slightly less UV exposure with a moderate index of 5 and a burn time of 30 minutes. Overall, vigilance is crucial during high-risk months, especially when outdoor activities are planned.
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 |
| Hengfan | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 11 | 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 |