Costa Esmeralda, Mexico offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Costa Esmeralda, Veracruz, Mexico, is known for its beautiful beaches along the Gulf of Mexico and the nearby El Tajin archaeological site. The best time to travel to Costa Esmeralda, Mexico, is from November to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 77-82°F (25-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!