Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Dangchengwan, China, where the climate can lead to significant sun exposure. With UV levels peaking at a high index of 12 during the midday hours, awareness is vital for sunburn prevention and overall skin health. Knowledge of these levels helps individuals make informed choices about sun protection, especially in a region known for its dry and sunny BWk climate. By staying vigilant about UV exposure, you can enjoy the sun safely and protect your skin from potential damage.
The UV Index throughout the day shows a dynamic fluctuation in sun intensity. Early morning, at 07:00 and 08:00, the index remains low at 1, indicating minimal sun exposure risk. As the sun rises, the index climbs to 3 by 09:00, then reaches a moderate level of 5 by 10:00. The real intensity kicks in at 11:00 with a peak of 8, and by 12:00, the UV Index surges to 10, signaling high exposure risk. The afternoon carries the highest readings, with a maximum of 12 at both 13:00 and 14:00, creating a need for sun protection. Following this peak, the index gradually declines, dropping to 11 at 15:00, and then easing to 8 at 16:00. As the day winds down, the index falls to 6 by 17:00 and continues to decrease through the evening, resting at a gentle 2 by 19:00. Overall, today’s UV Index reveals a typical midsummer day where one must be cautious during the peak hours of sunlight.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with a noticeable increase in risk during the warmer months. January and December see a moderate UV Index of 3, with a burn time of 30 minutes. Risk amplifies in February to a moderate UV Index of 5, where exposure time remains short. From March to August, the UV Index escalates dramatically, peaking at 12 during the summer months. This period categorizes exposure as extreme, necessitating limited sun exposure—down to 10 minutes for those with sensitive skin. The high-risk months are clearly May, June, July, and August. As we transition into September, the index remains very high at 10, reducing burn time back to 15 minutes. October presents a slight decline to a high index of 7, while UV levels taper off to moderate levels again in November and January. Visitors and residents are strongly advised to take precautions during high UV months by wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours, especially from May to August.
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 |
| Dangchengwan | 3 | 5 | 8 | 10 | 12 | 12 | 12 | 12 | 10 | 7 | 4 | 3 |
| 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 |