Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Yanchiwan, China, where the sun's rays can be particularly intense. Awareness of UV levels helps protect against sunburn and supports long-term skin health, making it essential to monitor daily exposure, especially during peak hours. Yanchiwan's ET climate leads to significant UV intensity, peaking with an index of 14 around midday, highlighting the importance of proper sun safety measures. Stay informed and protect your skin while enjoying the beautiful outdoors!
The UV Index is on the rise today, peaking during the midday hours. Starting at a modest 1 at 07:00, it climbs steadily to reach 12 by noon, signaling the need for sun protection. The intensity peaks at 14 from 13:00 to 14:00, reminding us that outdoor activities during this time demand heightened vigilance against UV exposure. As the day progresses, the index gradually descends, falling to 6 by 17:00, and dropping further to 2 as evening approaches. Remember to stay safe in the sun, especially during those peak hours when the UV rays can be at their most harmful!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels demonstrate significant seasonal variation, with the highest risk occurring from March to September. March showcases a sharp rise to a UV Index of 10, categorized as very high, reducing burn time to just 15 minutes. This increase continues to peak in May at an alarming 15 (extreme), where a mere 10 minutes of exposure can lead to burns. Visitors and residents should be particularly cautious during these months, ensuring they seek shade, wear protective clothing, and apply broad-spectrum sunscreen regularly. October marks a gradual decline, with a UV Index of 8 (very high), before dropping to more moderate levels in the winter months of November and December, where the UV Index returns to 5 and 3, respectively, allowing for longer exposure times of 30 minutes without significant risk. Thus, while winter months pose lower UV threats, vigilance is encouraged during spring and summer for optimal skin health.
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 |
| Yanchiwan | 3 | 6 | 10 | 12 | 15 | 14 | 14 | 13 | 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 |