Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors in Wuli, China, where sun exposure can lead to significant skin health risks. With UV levels peaking around noon at a striking 13, awareness of these values becomes crucial for effective sunburn prevention. In Wuli's temperate Cfa climate, typical summer days can expose individuals to harmful radiation, making it vital to stay informed about daily UV fluctuations. Embracing this knowledge not only protects your skin but also enhances your overall outdoor experiences.
During a typical day, the UV Index experiences a dramatic rise starting early in the morning. At 07:00, it registers a mere 1, suggesting minimal risk of harm from unprotected sun exposure. However, as the clock advances, the index steadily climbs, reaching 8 by 10:00 and peaking at a striking 13 between 12:00 and 13:00. This high reading marks a very high risk, urging everyone to seek shade and don protective clothing. As the afternoon wanes, the index gradually descends, dropping to 9 by 15:00 and tapering off to 1 once again by 19:00. This data reflects the critical nature of midday sun exposure, emphasizing the importance of sun safety during peak hours.
| 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 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits notable changes throughout the year, indicating varying levels of sun exposure risk. From January to March, the UV Index begins at 7 and peaks at 9, with high to very high exposure categories and burn times gradually decreasing from 25 minutes to 15 minutes. As we transition into April through September, the UV Index escalates to 12-13, categorizing these months as extreme risk with a minimal burn time of just 10 minutes. October sees a drop to 9, returning to very high risk, while November and December lower to 7 and 5, respectively, categorized as high and moderate exposure, allowing for more extended burn times of 25 minutes and 30 minutes. Visitors and residents are strongly advised to take precautionary measures during the high-risk months of April through September by wearing protective clothing, using sunscreen, and limiting sun exposure, especially during peak hours.
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 |
| Wuli | 7 | 8 | 9 | 12 | 12 | 12 | 13 | 13 | 12 | 9 | 7 | 5 |
| 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 |