Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Heigou, China, where the unique Dwa climate often leads to intense sunlight. With peak UV levels reaching a high of 10 around midday, awareness of these numbers is essential for preventing sunburn and safeguarding skin health. By monitoring UV exposure, the community can better protect itself against the harmful effects of ultraviolet rays, especially during the summer months when risks are heightened. Stay informed and enjoy the outdoors confidently by keeping an eye on the UV Index in Heigou!
The UV Index throughout the day reveals a dynamic pattern of sun intensity, peaking dramatically as the sun climbs. At 07:00, it starts at a mild 2, but by 09:00, it escalates to a notable 7. The intensity reaches its zenith at 11:00 and 12:00, both with a robust 10, demanding protective measures for outdoor activities. As the afternoon progresses, the index gradually declines, falling to 5 by 15:00 and tapering off to 1 by 17:00, where it remains until twilight. This highlights the critical hours for sun exposure, especially between 10:00 and 14:00, when the sun’s rays are at their strongest.
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 | 9 | very high | 15 min |
14:00 | 7 | high | 25 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 exposure varies significantly, with high-risk months typically occurring from March to September. During these months, the UV Index reaches levels categorized as high to very high, particularly peaking at 10 in July. Visitors and residents should take precautions, especially in late spring and summer, when burn times drop to a mere 15 minutes. In contrast, UV exposure is low in January and December, with burn times extending to 45 minutes. It's crucial for everyone to be aware of these seasonal changes and to apply sunscreen, wear protective clothing, and seek shade during peak UV times, especially from late morning to early afternoon.
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 |
Heigou | 2 | 4 | 6 | 7 | 8 | 9 | 10 | 9 | 8 | 6 | 3 | 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 |