Last updated: July 2, 2025
In Vi Thanh, Vietnam, awareness of the UV Index is crucial for safeguarding your skin from harmful sun exposure. With UV levels peaking in the late morning and early afternoon, understanding these fluctuations can help you enjoy the outdoors while effectively preventing sunburn and long-term skin damage. Vi Thanh's tropical climate boasts abundant sunshine but also presents notable risks, especially when the UV Index reaches 13 around noon. Stay informed and protect yourself from overexposure to UV radiation!
The UV Index shows a dramatic rise throughout the morning, starting at a mild 1 at 7:00 AM. As the sun climbs higher, it peaks at an intense 13 from 11:00 AM to 12:00 PM, signaling a high level of UV radiation that necessitates protective measures. The intensity gradually tapers off in the afternoon, dipping to 9 at 2:00 PM, before continuing its decline to 6 by 3:00 PM. By 4:00 PM, the UV Index drops to 3, and as twilight approaches, it settles back down to a safe 0 by 7:00 PM. This data emphasizes the importance of sun safety, particularly during the midday hours when UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 13 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 6 | high | 25 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 values reveal consistent extreme exposure risks, particularly pronounced from February to October. The highest UV Index occurs in March, reaching 16, followed closely by April and August at 14. Consequently, the months of February, March, April, and August are particularly high-risk for skin damage, with the burn time remaining a mere 10 minutes across all months. It is essential for both visitors and residents to take precautions during these months by wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure, especially during peak hours. Staying vigilant about UV levels can help mitigate the risk of harmful effects associated with prolonged sun exposure.
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 |
Bien Hoa UVI | 10 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 13 | 12 | 11 | 10 |
Vi Thanh | 11 | 14 | 16 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 11 | 11 |