Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Changshanzi, China, to safeguard their skin health against the sun’s potentially harmful effects. As the UV levels peak during the midday hours, reaching a significant level of 10 around noon, being aware of these changes can help prevent sunburn and long-term skin damage. Changshanzi, located in a BSk climate zone, typically experiences dry and sunny conditions that can increase UV exposure risks. By staying informed about the UV Index, you can enjoy the outdoors safely while protecting your skin!
The UV Index on this sunny day starts off moderately at 2 by 07:00 and escalates quickly. By 08:00, it reaches 3, but the real rise begins at 09:00, hitting 5. As the sun climbs higher, the index peaks at a sizzling 10 at 12:00, the day’s hottest moment for UV exposure. A slight decline follows; by 14:00, the index dips to 7. The afternoon cools down further, dropping to 5 by 15:00 and continuing toward evening, where it settles at 1 by 18:00 and 19:00. Remember to protect your skin during peak hours, especially between 10:00 and 14:00 when the sun is at its strongest!
| 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 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 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 |
Throughout the year, the UV Index exhibits significant seasonal variation, affecting sun exposure risk. From January to February, UV levels are relatively low to moderate, with burn times extending to 45 minutes in January and reducing to 30 minutes in February. As spring approaches, especially in March and April, UV levels rise sharply to high, necessitating caution with burn times decreasing to 25 minutes. The summer months of May, June, and July present the highest risk, with UV Index values peaking at 10 and a minimal burn time of just 15 minutes. August sees a slight reduction, but remains very high at 8. As summer fades, the UV Index drops to 7 in September, and further to 5 and 3 in October and November, respectively, before returning to low levels in December. Therefore, it is essential for visitors and residents to be especially vigilant during the high-risk months of May through August, employing adequate sun protection measures like sunscreen, protective clothing, and seeking shade, especially during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Changshanzi | 2 | 3 | 6 | 7 | 9 | 10 | 10 | 8 | 7 | 5 | 3 | 2 |
| 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 |