Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Bizhou, China, as it plays a vital role in preventing sunburn and maintaining skin health. With Bizhou's Dwc climate, characterized by distinct seasonal variations, it's important to recognize the potential risks of UV exposure, especially during the midday hours when the index peaks at 7. By monitoring UV levels throughout the day—ranging from moderate in the early morning to high by noon—individuals can take proactive measures to protect themselves from harmful UV radiation while enjoying the region's sunny days.
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, seasonal changes in UV Index indicate varying levels of sun exposure risk. From January to March, the UV Index is relatively low, ranging from 1 to 4, with burn times extending from 45 minutes to 30 minutes. As spring progresses into April and May, the risk rises significantly, with an Index peaking at 7 during May and early June, exposing individuals to potential burns in as little as 25 minutes. The summer months of July and August present the highest risk, particularly in July with a very high UV Index of 8, necessitating protective measures due to a short burn time of just 15 minutes. As September cools toward autumn, UV exposure drops back to moderate levels until the end of the year. Visitors and residents should remain vigilant and take preventive actions, particularly from May through August, to protect themselves against harmful UV radiation by seeking shade, wearing protective clothing, and applying sunscreen.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bizhou | 1 | 2 | 4 | 5 | 7 | 7 | 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 |