Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Longxing, China, where the combination of a humid subtropical climate (Cfa) and elevated sun exposure can significantly impact your skin health. With UV levels peaking at a staggering 13 between noon and 1 PM, awareness of these radiation levels is essential for effective sunburn prevention and long-term skin protection. Regularly checking the UV Index helps inform your outdoor plans, ensuring you take precautions during high-risk periods when sun damage is most likely. Stay informed to enjoy the beautiful sunny days in Longxing safely!
As the sun rises, the UV Index begins at a gentle 1 at 7:00 AM, gradually increasing to 2 by 8:00 AM. By 9:00 AM, it reaches a moderate 4, but the intensity really ramps up at 10:00 AM, soaring to 8. The peak occurs at 12:00 PM, where the UV Index hits a staggering 13, remaining consistently high until 1:00 PM. As the afternoon progresses, it starts to decline, dipping to 12 at 2:00 PM and gradually falling to 3 by 5:00 PM. The day concludes with a return to a safer 1 by 7:00 PM, making it essential to stay protected during those intense midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | 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 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels vary significantly, peaking during the summer months. January starts with a high UV Index of 6, with a burn time of 25 minutes, but by February and March, it escalates to 8 and 9, respectively, both categorized as very high, and reducing burn time to 15 minutes. As we transition into April and May, the UV Index hits an extreme level of 12, where the burn time shortens to just 10 minutes. This extreme level continues through July and August, maintaining a UV Index of 13. September sees a slight decline to 11 but remains in the extreme category, while October returns to very high at 10. November and December finally give a reprieve with lower indices of 7 and 5, respectively. Therefore, the high-risk months for sun exposure are from April to September, where the UV Index is at its highest, urging visitors and residents to take protective measures, such as wearing sunscreen, sunglasses, and protective clothing, and limiting sun exposure during peak hours for safety.
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 |
| Longxing | 6 | 8 | 9 | 12 | 12 | 13 | 13 | 13 | 11 | 10 | 7 | 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 |