Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Mu Cang Chai, Vietnam, where the climate fosters abundant sunshine and scenic mountainous landscapes. With UV levels peaking between 11:00 AM and 1:00 PM, awareness of these values is key to preventing sunburn and promoting long-term skin health. As this region enjoys a Cfa climate, characterized by warm summers and lush greenery, recognizing the risks associated with high UV exposure can help you enjoy your outdoor adventures while safeguarding your skin. Stay informed and protect yourself as you explore the breathtaking beauty of Mu Cang Chai!
The UV Index throughout the day showcases a dramatic rise and fall in intensity. Starting at 07:00, the index is a modest 2, but by 09:00, it jumps to 7, indicating a sharp increase in sun exposure. The peak intensity occurs at 12:00, where the UV Index reaches a scorching 15, signaling a critical need for sun protection. As the afternoon rolls in, the numbers begin to decline, dipping to 11 by 14:00 and further down to 4 at 16:00. Finally, the index wanes into the evening, dropping to 1 at 18:00 and settling at 0 by 19:00, effectively marking the end of a sun-soaked day. Pay attention to these fluctuations to protect your skin from harmful UV rays!
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 | 14 | extreme | 10 min |
12:00 | 15 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 11 | extreme | 10 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 |
The UV Index shows significant seasonal variation, peaking during the late spring and summer months. From March to October, the index frequently reaches extreme levels, particularly in May and July when it hits 15, resulting in a burn time of just 10 minutes. The months of February and November remain high as well, categorized as very high, with a burn time of 15 minutes. Therefore, residents and visitors are strongly advised to take precautionary measures such as wearing protective clothing, applying high-SPF sunscreen, and seeking shade during peak hours, especially from March to October when the sun's rays are the most intense.
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 |
Mu Cang Chai | 8 | 10 | 13 | 13 | 15 | 14 | 15 | 14 | 14 | 12 | 10 | 8 |
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 |