Last updated: July 2, 2025
Understanding the UV Index in Yi'an, China is crucial for safeguarding your skin and overall health. With peak UV levels reaching 8 between 11:00 AM and 1:00 PM, residents and visitors need to stay informed about potential sun exposure risks. Excessive UV radiation can lead to painful sunburns and long-term skin damage, making awareness essential, especially in the region's continental climate, known for its variable weather patterns. By keeping an eye on the UV Index, you can take proactive measures to enjoy the sun safely and protect your skin's health in Yi'an.
As the sun rises, the UV Index begins its ascent, starting at a modest 2 at 7:00 AM. By 9:00 AM, it reaches a 6, signaling a notable rise in sun intensity. The peak hours of the day are between 11:00 AM and 1:00 PM, where the UV index holds steady at a high of 8, reminding us to protect our skin. After this peak, the intensity begins to taper off, dropping to 6 by 2:00 PM, and gradually decreasing to a low of 1 by 6:00 PM. It’s clear that during the midday hours, caution is essential, while the later parts of the day offer a reprieve from sun exposure. Enjoy the sun safely!
| 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 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences noticeable fluctuations, indicating varying levels of sun exposure risk. January and February are classified as low risk with a consistent UV Index of 2 and a burn time of 45 minutes. As spring approaches, March sees a moderate increase to a UV Index of 4 (30 minutes burn time), which escalates into the high-risk category with values reaching 6 in April and 7 in May. The summer months (June, July, and August) peak at a very high UV Index of 8, significantly reducing safe exposure times to just 15 minutes. After the summer heat, September returns to a high risk, followed by moderate conditions in October. As the year winds down, November and December revert to low exposure categories, with UV Index values of 2 and 1, respectively. Visitors and residents should exercise heightened caution during the high-risk months of April to August, using sunscreen, wearing protective clothing, and seeking shade, especially during midday hours when UV radiation is strongest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yi'an | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 |
| 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 |