Dat Mui, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dat Mui, Ca Mau, Vietnam, is known for the Ca Mau Cape National Park and the iconic Dat Mui mangrove forests. The best time to travel to Dat Mui, Vietnam, is from December to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 27-29°C (81-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!