Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Cao Lanh, Vietnam, where the tropical climate brings high levels of sun exposure year-round. With UV levels peaking around noon often reaching 13, it’s essential to recognize these risks for effective sunburn prevention and maintaining optimal skin health. By knowing when to seek shade or apply sunscreen, you can enjoy the vibrant outdoors while safeguarding your skin from harmful effects. Stay informed about the UV Index to protect yourself against the intense sun typical of this Aw climate zone!
As the sun rises, the UV Index starts off low at 1 by 07:00, perfect for a leisurely morning. However, it quickly climbs to 3 by 08:00 and then skyrockets to a peak of 13 by noon. The intensity of the sun is unmistakable, with the highest reading of 12 at 11:00 and gradually tapering off through the afternoon. By 15:00, the index drops to 5, providing a brief respite before sinking to 3 by 16:00 and ultimately returning to 1 by 17:00. As daylight fades, UV exposure diminishes, ending the day at a safe 0 by 19:00. This data serves as a reminder to protect your skin during peak hours, especially between 10:00 and 14:00, when the UV Index soars to its highest levels!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 12 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | 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 |
The UV Index shows significant seasonal fluctuations, with extremely high levels recorded from February to November. The highest values occur in March (15) and April through September (14). Residents and visitors should be particularly cautious between February and October, as these months have an extreme exposure category with a rapid burn time of just 10 minutes. In contrast, January's UV Index is very high at 10, leading to a burn time of 15 minutes. To ensure safety during these high-risk periods, it is advisable to apply broad-spectrum sunscreen, wear protective clothing, and limit sun exposure during peak hours.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hanoi UVI | 8 | 10 | 12 | 12 | 13 | 12 | 12 | 13 | 13 | 11 | 9 | 7 |
Haiphong UVI | 8 | 10 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 11 | 9 | 7 |
Da Nang UVI | 10 | 12 | 14 | 15 | 14 | 13 | 14 | 14 | 13 | 12 | 10 | 9 |
Ho Chi Minh City UVI | 10 | 13 | 15 | 14 | 14 | 12 | 13 | 14 | 13 | 13 | 11 | 10 |
Cao Lanh | 10 | 13 | 15 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 11 | 11 |
Bien Hoa UVI | 10 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 13 | 12 | 11 | 10 |