Last updated: May 3, 2025
In Hengtoushan, China, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels is essential, as high exposure can lead to painful sunburns and increase the risk of skin damage over time. With a Dwb climate, Hengtoushan experiences varied sunshine throughout the year, meaning residents and visitors must stay vigilant about UV exposure, particularly during mid-morning to early afternoon when the index peaks at a high of 8. By staying informed about the UV Index, you can enjoy the beautiful outdoors while minimizing risks associated with harmful ultraviolet rays.
As the day unfolds, the UV Index begins to rise at 7:00 AM, starting at a modest 3. By 9:00 AM, the index hits 6, quickly surging to a peak of 8 at 11:00 AM, making this the sun's most intense hour. As noon passes, the UV intensity begins to wane, dropping to 7 by 12:00 PM, and gradually decreasing to 4 by 2:00 PM. The afternoon brings a gentle decline, with the UV Index dipping to 3 at 3:00 PM, and then further to 1 by 5:00 PM, painting a picture of a sun that is slowly retreating. By 7:00 PM, the index has quieted to 0, welcoming the cool evening—a gentle reminder to stay protected when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal variation, with the highest exposure levels occurring from April to August. During this period, particularly in May, June, and July, the UV Index reaches 9, categorized as very high, necessitating a burn time of only 15 minutes. April also marks the start of increased risk with a UV Index of 6 (high), while September sees a reduction to 6 as well, though precautions should still be taken. Conversely, the months of January, November, and December present a low UV Index of 2, offering a safer environment for outdoor activities without heavy protection. Visitors and residents are advised to schedule outdoor activities to minimize exposure during high-risk months, apply broad-spectrum sunscreen, wear protective clothing, and seek shade when necessary, particularly during peak hours from 10 a.m. to 4 p.m.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hengtoushan | 2 | 3 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| 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 |