Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Thi Tran GJong Van, Vietnam, where the tropical climate can lead to high levels of sun exposure throughout the year. Knowing the UV levels helps you protect your skin from harmful effects such as sunburn and long-term skin damage. During the hottest hours, particularly between 11 AM and 1 PM when the UV Index peaks at 14, it's essential to stay informed and take protective measures. With daily variations, the UV risk can shift dramatically, making it vital to understand when to seek shade or apply sunscreen to ensure healthy skin and overall well-being while enjoying the vibrant beauty of this region.
As the sun rises, the UV Index begins its climb, peaking dramatically at 14 around noon. Starting from a mild 2 at 07:00, the intensity escalates quickly, reaching a tipping point of 11 by 10:00 and hitting its zenith at 12:00. During the midday hours, when the UV exposure is most potent, it's essential to take precautions. As afternoon approaches, the index gradually subsides—dropping to 7 at 15:00 and further to 2 by 17:00. After sunset, UV levels wane to 0, signaling a safe return for outdoor activities as the sun sinks below the horizon. Make sure to protect your skin and enjoy the sunny day safely!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 11 | extreme | 10 min |
11:00 | 13 | extreme | 10 min |
12:00 | 14 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 7 | high | 25 min |
16:00 | 4 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, UV exposure fluctuates significantly, with highest UV Index readings occurring from March to October, categorizing these months as extreme risk (UV Index 12-14) and resulting in a rapid burn time of just 10 minutes. High-risk months include April, May, June, July, August, and September, when sun protection is critical to avoid skin damage. Conversely, during January and February, while still marked as very high (UV Index 8-10), the burn time extends to 15 minutes. As we head into the cooler months, November registers a UV Index of 9 (very high), while December sees a safer 7 (high), with a longer burn time of 25 minutes. Residents and visitors are strongly advised to use sunscreen, wear protective clothing, and seek shade during peak sun hours, especially in the summer months.
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 |
Thi Tran GJong Van | 8 | 10 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 12 | 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 |