Agua Blanca, Mexico offers 1 beach perfect for sunbathing, surfing, swimming, and more. Agua Blanca, Oaxaca, Mexico, is known for its natural hot springs and scenic landscapes. The best time to travel to Agua Blanca, Mexico, is from November to April, with average air temperatures around 75°F (24°C) and water temperatures near 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!