Last updated: May 3, 2025
In Changgang, China, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding the UV levels is essential not only for preventing painful sunburns but also for safeguarding long-term skin health. With a Dwa climate, Changgang experiences notable variations in UV exposure throughout the day, peaking at a UV Index of 7 between 10 AM and 12 PM. This makes it vital for residents and visitors alike to stay informed about daily UV levels to enjoy the sunshine safely while minimizing the risks associated with excessive sun exposure.
As the sun rises, the UV Index begins its ascent, peaking during the late morning to early afternoon. At 07:00, it starts at a mild 2, gradually climbing to a moderate 4 by 08:00. The real intensity hits between 09:00 and 12:00, with a maximum reading of 7, signaling the best time to seek shade or apply sunscreen. As the afternoon progresses, the index dips gradually, tapering off to 6 at 13:00, and then declining further to 5 by 14:00. By late afternoon, it drops to a comfortable 3 at 15:00, followed by 2 at 16:00, and settles into the evening with a low 1 from 17:00 to 19:00. This timeline serves as a reminder to protect your skin during those peak hours when UV radiation is most potent!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 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 | 5 | 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 | 1 | low | 45 min |
Throughout the year, UV Index levels demonstrate significant seasonal variations, impacting sun exposure safety. The high-risk months for UV exposure are from April to August, with the highest readings occurring in June and July, where the UV Index reaches 9, classified as very high, and resulting in a burn time of just 15 minutes. As spring transitions to summer, caution is advised; during these months, it’s essential for both visitors and residents to take protective measures such as wearing sunscreen, protective clothing, and seeking shade when outdoors. Conversely, the months of January, November, and December feature low UV levels, making sun protection less critical. However, as the UV Index increases from February through March, awareness of sun safety should gradually rise, particularly as activities in outdoor settings become more frequent.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Changgang | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| 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 |