Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Yanmen, China, as it provides essential insights into sun exposure risks that can significantly impact skin health. With peak UV levels reaching a concerning 16 in the early afternoon, awareness becomes imperative for preventing sunburn and reducing long-term skin damage. Yanmen's Cwb climate features distinct seasonal variations, but the potential for harmful UV radiation remains consistent, especially during sunny days. By staying informed about daily UV levels, you can take proactive steps to protect your skin and enjoy the outdoors safely.
From the early morning hours, the UV Index starts gently at 1, allowing for a safe outing. However, as the sun climbs higher, a dramatic shift occurs, with the UV Index spiking to 10 by 11:00, and reaching a peak of 16 at 13:00. This is the time to exercise caution, as sun exposure increases significantly. The intensity begins to decline in the afternoon, dropping to 10 by 16:00, and settling back to a manageable 1 as the sun sets around 19:00. It’s crucial to protect your skin during the midday hours when the UV levels are at their highest, peaking at noon with an extraordinary 14! Remember, for peak safety, sunscreen and other protective measures are essential during these sun-drenched hours.
| 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 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 16 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 10 | 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 values display significant seasonal variation, with peak exposure occurring from March to September. The highest UV Index values—reaching up to 16—are recorded from April to July, categorized as extreme, where the potential burn time is as little as 10 minutes. February and March also show elevated risk, with indices of 11 and 14, respectively. Consequently, visitors and residents should take proactive measures during the high-risk months of February through October, ensuring adequate sun protection such as sunscreen, hats, and protective clothing. In contrast, November, with a UV Index of 9, and December at 7, presents lower risks, allowing for a bit more flexibility in outdoor activities without immediate concern for sunburn. Nonetheless, it’s always wise to remain vigilant about UV exposure year-round.
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 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |
| Yanmen | 9 | 11 | 14 | 16 | 16 | 16 | 16 | 15 | 15 | 12 | 9 | 7 |