Last updated: June 2, 2025
Awareness of the UV Index is crucial for residents of Longcheng, China, where sun exposure can vary significantly throughout the day. Understanding UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With a Dwb climate that experiences intense sunlight during peak hours, knowing when UV rays are most harmful can help you take necessary precautions. For instance, peak UV levels in Longcheng can soar to a staggering 13 around noon, making it vital to seek shade and apply sunscreen during these hours. Stay informed and protect your skin!
The UV Index reveals a dynamic fluctuation throughout the day, peaking dramatically at 1 PM with a soaring 13—a call for sun safety. Starting from a gentle 1 at 7 AM, the intensity gradually builds, reaching a moderate 5 by 9 AM. The sun's rays become more relentless, with a notable 10 at 11 AM and an even more intense 12 at noon. As the day progresses, the index begins to decline, dropping to 9 by 3 PM, and cooling to a casual 1 by 7 PM. Keep your sunscreen handy for peak hours when the 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 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so too do the UV levels, significantly impacting both visitors and residents. January starts with a moderate UV Index of 4, allowing for a burn time of 30 minutes, but by February, the risk escalates to a high UV Index of 6, reducing burn time to 25 minutes. The real concern arises from March through September, where the UV Index reaches very high and extreme levels, peaking at 13 in June. During this critical period, recommended burn times drop to as little as 10 minutes. Particularly, the months of May to September are classified as high-risk, necessitating precautionary measures such as sunscreen, protective clothing, and limited sun exposure, especially during peak hours. As autumn approaches, the UV levels decrease, with October reflecting a very high index of 8 before returning to moderate levels by November and December. Residents and visitors should remain vigilant and adapt their sun protection strategies accordingly throughout the year, especially during summer 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 |
| Longcheng | 4 | 6 | 8 | 10 | 12 | 13 | 12 | 12 | 11 | 8 | 5 | 3 |
| 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 |