Buena Vista, Mexico offers 9 beaches perfect for sunbathing, surfing, swimming, and more. Buena Vista, Baja California Sur, Mexico, is known for its proximity to the Sea of Cortez and the luxurious Buena Vista Beach Resort. The best time to travel to Buena Vista, Mexico, is from November to April, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!