Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Cangshan, China. With its unique Dwc climate, Cangshan experiences varying UV levels, peaking mid-day when the risk for sunburn and long-term skin health issues rises significantly. As the UV Index reaches a maximum of 7 from 11:00 AM to 12:00 PM, it's essential to stay informed to protect yourself from harmful exposure. By staying aware of UV levels, you can take practical steps to enjoy the sun safely and maintain healthy skin all year round.
The UV Index reveals a dynamic daylight journey that peaks in intensity around 11:00 and 12:00 with a maximum value of 7, indicating a need for sun protection during these hours. As the day progresses, the UV intensity rises sharply from 2 at 07:00 to 6 by 10:00, showcasing the growing strength of the sun. After reaching its zenith, the index begins a gentle decline, dropping to 4 by 15:00 and settling to a more manageable 1 by 17:00, suggesting that later hours are safer for outdoor activities. This data underscores the importance of being vigilant under the sun during midday, while also offering a reprieve in the afternoon and evening.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 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 shows significant seasonal changes, indicating varying levels of sun exposure risk. From January to February, the UV Index is at a low level (1-2), allowing for leisurely outdoor activities without much concern, with burn times of 45 minutes. This risk begins to rise in March (UV Index 4) as exposure becomes moderate, reducing burn time to 30 minutes. The high risk months peak from April to July, with the UV Index reaching 8, representing very high exposure during June and July, where burn times drop drastically to just 15 minutes. As summer wanes in August, the index remains high at 7, moving back to moderate levels by September (UV Index 5) and October (UV Index 3), with burn times extending to 30 minutes again. For November and December, the exposure category returns to low, providing 45 minutes for sun exposure. It is crucial for visitors and residents to stay informed and take precautions during the high-risk months of April through August, such as wearing protective clothing, using sunscreen, and seeking shade to mitigate the risk of sunburn and skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cangshan | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 5 | 3 | 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 |