Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Yilongyong, China, as it provides essential insights into sun exposure risks throughout the day. With a climate classified as Dwa, Yilongyong experiences significant variations in UV levels, peaking at an index of 9 around noon. Knowing these levels is key to preventing sunburn and protecting skin health, especially during the summer months when UV rays are at their strongest. This guide will help you navigate the day’s UV patterns, ensuring you enjoy the sun safely while minimizing the risk of skin damage.
As the sun rises, the UV Index begins to climb, reaching a maximum of 9 between 11:00 AM and 1:00 PM—the peak time for sun exposure. Starting at a modest 2 at 7:00 AM, the index steadily ascends to 4 by 8:00 AM, hitting 6 by 9:00 AM. The day's intensity culminates at noon, remaining at that level until 1:00 PM before gradually tapering off. By 3:00 PM, it drops to 5, and after that, it continues to decline, reaching a low of 1 by 6:00 PM. For those planning outdoor activities, it’s essential to take precautions during the midday peak to protect your skin from harmful UV rays!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The seasonal UV changes reveal a notable increase in UV Index values from winter to summer, peaking in July and August at 10, indicating very high risk of harm from unprotected sun exposure. January and December have the lowest UV Index values of 2, signifying a low risk with a longer burn time of 45 minutes. The high-risk months are March through August, particularly April to July, when UV levels are very high, necessitating caution. Visitors and residents should take necessary precautions during these peak months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during midday hours, to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yilongyong | 2 | 3 | 6 | 8 | 8 | 9 | 10 | 10 | 7 | 5 | 3 | 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 |