Teacapan, Mexico offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Teacapan, Sinaloa, Mexico, is known for its stunning natural beauty, including the Teacapan Estuary and the Marismas Nacionales Biosphere Reserve. The best time to travel to Teacapan, Mexico, is between November and April, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 75-80°F (24-27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!