Last updated: May 3, 2025
Understanding the UV Index is essential for residents of Tianchang, China, where the climate typically features hot summers and cold winters, creating varying UV exposure risks throughout the year. With UV levels peaking at a high 10 during the midday hours, being aware of these fluctuations can help you prevent sunburn and protect your skin's health. By understanding the daily UV Index, you can take proactive measures to safeguard yourself from harmful rays, ultimately leading to better skin health and overall wellbeing. Stay informed about UV levels to enjoy the beautiful Tianchang outdoors safely!
The UV Index throughout the day paints a vivid picture of sun intensity. Starting at a mild 1 at 7:00 AM, the index gradually climbs, reaching a more noticeable 3 by 8:00 AM. The real surge occurs between 9:00 AM and 12:00 PM, where it peaks at 10—a crucial time for sun protection. After that, it begins to gently decline, with 9 at 1:00 PM, 8 at 2:00 PM, and dropping further to 6 by 3:00 PM. As the sun starts its descent, the index sees a steady fall, ending at a comfortable 1 by 6:00 PM, making the later hours much safer for outdoor activities. Pay attention to the height of UV levels around midday for optimal sun safety!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so too does the UV Index, which reflects the intensity of ultraviolet radiation and the potential for skin damage. During the winter months of January (UV Index 3) and February (UV Index 4), the exposure level is moderate, with a burn time of 30 minutes. However, as spring approaches, particularly in March (UV Index 6), the risk escalates to high, requiring more vigilant sun protection. The summer months are particularly hazardous, peaking from April (UV Index 8) through August (UV Index 10), denoting very high exposure levels where burn times shrink to just 15 minutes. Even as autumn settles in, September maintains a strong risk with a UV Index of 8, and October (UV Index 7) still poses a high risk. In contrast, November and December present much lower risks with indices dropping to 4 and 2 respectively. Visitors and residents are advised to prioritize sun safety, particularly during the high-risk months of April through September, by using sunscreen, wearing protective clothing, and seeking shade whenever possible.
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 |
| Tianchang | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 10 | 8 | 7 | 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 |