Last updated: August 1, 2025
Understanding the UV Index in Changlong, China, is essential for safeguarding your skin and overall health. As a popular destination characterized by its Cwa climate, residents and visitors alike face significant UV exposure, particularly during midday hours when the index peaks at a striking 12. Awareness of UV levels not only aids in sunburn prevention but also contributes to long-term skin health—helping you enjoy outdoor activities safely. With the UV Index spiking around 11:00 AM to 1:00 PM, it's vital to take appropriate precautions to protect yourself from harmful rays while soaking up the beauty of this vibrant region.
The UV Index throughout the day presents a vivid picture of sun intensity. In the early morning, starting at 07:00, the index is a gentle 1, gradually rising to 2 by 08:00. The real surge begins at 09:00, where it climbs to 4, reaching a peak of 12 around 13:00. Noteworthy are the hours between 11:00 and 14:00, when the index soars, hitting a maximum of 11 at 12:00 before slightly easing to 11 again by 14:00. As afternoon turns to evening, the UV levels decrease significantly, dropping to 8 by 15:00, and falling further to 1 by 19:00. This data emphasizes the importance of sun protection during midday hours when the UV radiation is at its strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | 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 |
Throughout the year, the UV Index experiences significant fluctuations, marking March through August as high-risk months for sun exposure. The UV Index peaks at 12 in July and August, indicating extreme exposure conditions with a burn time of just 10 minutes. Transitioning from winter to spring, the Index climbs sharply from moderate levels in January (5) to very high levels by March (8) and April (10), before reaching its highest in the summer months. As winter arrives, the Index drops back to moderate (4) in December, suggesting a reprieve from harmful UV rays. Visitors and residents are advised to take precautionary measures during high UV months, such as wearing protective clothing, using sunscreen, and seeking shade, especially during peak sunlight hours to safeguard against skin damage.
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 |
| Changlong | 5 | 6 | 8 | 10 | 11 | 11 | 12 | 12 | 10 | 9 | 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 |