Last updated: August 1, 2025
Understanding the UV Index in Yanshan, China, is crucial for safeguarding your skin health from harmful ultraviolet rays. With the region's Cfa climate, sunny days often bring high UV exposure, making it essential to be aware of daily UV levels to prevent sunburn and long-term skin damage. During peak hours, particularly from 11:00 AM to 1:00 PM, the UV Index can soar to a staggering 13. By recognizing these UV levels, residents and visitors alike can take proactive measures to protect themselves and enjoy the outdoors more safely.
As the sun rises and warms the day, the UV Index begins its ascent. At 7:00 AM, it starts at a mild 1, making it a safe time to be outdoors. By 8:00 AM, it climbs to 3, suggesting increased caution. The intensity peaks sharply at 10:00 AM with a striking 10, indicating a high risk of harm from unprotected sun exposure. The day reaches its zenith at 12:00 PM with an intense 13, where protective measures are essential. The UV levels begin to taper off after 1:00 PM, dropping to 10 by 2:00 PM, then gradually decreasing to 4 by 4:00 PM. As sunset approaches, the UV Index continues to decline, falling to 1 by 6:00 PM and finally hitting 0 by 7:00 PM, signaling the end of a day marked by a significant solar influence. Remember, staying protected during peak hours is key for your skin health!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with the highest values occurring from March to September, when the index reaches an extreme level of 12 to 13. Notably, February marks the transition into high UV levels, and April through August are particularly high-risk months, with a burn time as short as 10 minutes during this period. As summer approaches, residents and visitors should be vigilant and prioritize sun protection strategies, such as wearing sunscreen, hats, and UV-protective clothing, to minimize the risk of skin damage. In contrast, January, October, November, and December see a decrease in the UV Index, categorized as either high or very high, allowing for longer safe exposure times—up to 25 minutes in January and December. It is essential to remain aware of changing UV levels, particularly during these peak months, to ensure health and safety in sunlight.
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 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Yanshan | 7 | 9 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |