Last updated: May 3, 2025
In Qiangken, China, awareness of the UV Index is crucial for maintaining healthy skin and preventing sunburn, especially given the region's Dwb climate, which features sharp seasonal variations in temperature. Understanding UV levels not only helps in planning outdoor activities but also protects against the long-term risks of skin damage. With the UV Index peaking at 7 during midday hours, residents and visitors alike are urged to take precautions against high exposure, ensuring a safe and enjoyable experience under the sun.
The UV Index throughout the day exhibits a distinct pattern, peaking between 10:00 AM and 12:00 PM with a high of 7. Early risers will notice a moderate 3 at 07:00, which quickly escalates to 4 by 08:00. As the sun ascends, it reaches its zenith at 10:00 AM, holding steady at 7 until 12:00 PM, revealing a perfect time to be cautious outdoors. However, by the afternoon, the intensity declines, falling back to 4 at 2:00 PM and further cooling down to 1 by 5:00 PM. As night approaches, the sun sets its rays, reaching a safe 0 by 7:00 PM. This hourly trajectory underscores the importance of sun protection, particularly during the mid-day hours when UV exposure is highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal variations. January and December remain the safer months with a low UV Index of 2 (burn time of 45 minutes), while February, with a moderate Index of 3, signals a slight increase in risk. As spring progresses, March (UV Index of 5) begins to ramp up, transitioning into April and May, which see a high Index of 7 (burn time reduced to 25 minutes). The summer months of June, July, and August represent the peak of UV exposure, with a very high Index of 9 that drastically shortens burn time to just 15 minutes. In September, the risk remains high with a return to an Index of 7, before tapering off in October with a moderate 4, and again falling to low levels in November. Visitors and residents are strongly advised to take precautions during the high-risk months of April through September, by wearing sunscreen, protective clothing, and seeking shade, to minimize potential skin damage from increased UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qiangken | 2 | 3 | 5 | 7 | 7 | 9 | 9 | 9 | 7 | 4 | 2 | 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 |