Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Dengzhou, China, where the sun's intensity can pose serious risks, especially during peak hours. With UV levels soaring as high as 11 around noon, awareness of these fluctuations can help you protect your skin from harmful effects such as sunburn and long-term health issues. Dengzhou, located in a Cwa climate zone, experiences hot summers and significant UV exposure, making it essential to stay informed. Don't let a beautiful day lead to skin damage—check the UV Index regularly to enjoy the sun safely!
At sunrise, the UV Index starts low at 1, gradually increasing to 3 by 8:00 AM. As the day progresses, the sun’s intensity peaks at 12:00 PM with an impressive 11, signaling that midday is when UV exposure is at its highest. Shortly thereafter, the index slightly declines to 10 at 1:00 PM, before tapering off through the afternoon: 9 at 2:00 PM, 7 at 3:00 PM, and dropping to 4 by 4:00 PM. As evening approaches, the UV Index diminishes to 2 at 5:00 PM and finally returns to its morning levels of 1 by 6:00 PM, showcasing the natural ebb and flow of sunlight throughout the day. Be sure to protect your skin during peak hours between 11:00 AM and 1:00 PM!
| 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 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | 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 | 1 | low | 45 min |
As the seasons change, so do the UV Index levels, which dictate the intensity of sun exposure. January and February start with a moderate UV Index of 5, allowing for a burn time of 30 minutes. However, as we move into March, the index rises to 7 (high), reducing burn time to 25 minutes. April marks a significant jump to a very high UV Index of 9, with a burn time dropping to just 15 minutes. The peak UV exposure occurs in May and July at an extreme level of 11, where burn time is cut to only 10 minutes. June and August follow closely with a very high index at 10. Autumn months see a decline; September has a UV Index of 10, falling to 8 in October. By November, the index returns to a moderate level of 5, and in December, it decreases slightly to 4. Visitors and residents should take extra precautions during the high-risk months of March to October, particularly in May and July, by wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Dengzhou | 5 | 5 | 7 | 9 | 11 | 10 | 11 | 10 | 10 | 8 | 5 | 4 |
| 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 |