Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Dashi, China, a region characterized by a Dwa climate that can present varying levels of sun exposure throughout the day. With peak UV levels reaching as high as 9 between 11:00 AM and 12:00 PM, it’s essential to be aware of how these levels affect skin health and the risk of sunburn. Being informed about UV exposure not only helps in preventing painful sunburns but also plays a significant role in maintaining long-term skin health. As Dashi experiences a mix of sunshine and fluctuating temperatures, knowledge of the UV Index can empower individuals to take proactive measures against harmful rays and enjoy the outdoor beauty safely.
The UV Index throughout the day demonstrates a clear peak and gradual decline. Starting at 07:00, the index begins modestly at 2, but as the sun rises, it reaches 4 by 08:00. The intensity escalates quickly, hitting 6 at 09:00 and soaring to 8 by 10:00. The sun’s strength reaches its zenith at 11:00 and 12:00, each clocking in at a maximum of 9—a reminder to take necessary precautions! As the afternoon progresses, values dip to 8 at 13:00 and 7 at 14:00, before dropping to 5 by 15:00. The decline continues into the evening, with indices falling to 3 at 16:00, and then to 2 at 17:00, while fading to 1 by 18:00 and 19:00. This data highlights the importance of midday sun protection when the UV levels are at their highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The seasonal UV changes reveal a notable increase in UV Index values from winter to summer, peaking in July and August at 10, indicating very high risk of harm from unprotected sun exposure. January and December have the lowest UV Index values of 2, signifying a low risk with a longer burn time of 45 minutes. The high-risk months are March through August, particularly April to July, when UV levels are very high, necessitating caution. Visitors and residents should take necessary precautions during these peak months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during midday hours, to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dashi | 2 | 3 | 6 | 8 | 8 | 9 | 10 | 10 | 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 |