Last updated: July 2, 2025
In Changtang, China, understanding the UV Index is crucial for protecting your skin and overall health. With UV levels that can peak at 11 during midday hours, residents and visitors alike should be vigilant in minimizing sun exposure to prevent sunburn and long-term skin damage. The region's Cfa climate tends to bring intense sunlight, making it essential to stay informed about the daily UV risks. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while safeguarding your skin health.
The UV Index throughout the day reveals a dramatic rise in sun intensity, peaking during the late morning to early afternoon. Starting the day at a modest 2 at 7:00 AM, the index climbs steadily, reaching 11 by 11:00 AM and maintaining that level until 1:00 PM. This signifies a high risk of harm from unprotected sun exposure. Following this peak, the index begins to dip, dropping to 8 by 2:00 PM, and continuing its decline until it falls to 0 by 7:00 PM. With this information, it's crucial to take sun safety precautions—especially during the hours when the UV Index is at its 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 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal variations, with the highest risk occurring from March to August. During this period, the UV Index peaks at 12 in August, indicating an extreme exposure category, while other months like April and May also reach very high to extreme levels. In contrast, January, February, and November maintain a high exposure category, and December sees a drop to moderate levels. Visitors and residents are advised to take necessary precautions, especially during the high-risk months of March through August, by wearing protective clothing, sunscreen, and seeking shade to reduce the risk of harmful skin exposure.
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 |
Changtang | 6 | 7 | 9 | 10 | 11 | 11 | 11 | 12 | 10 | 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 |