Cartagena de Indias, Colombia offers 13 beaches perfect for sunbathing, surfing, swimming, and more. Cartagena de Indias is known for its historic walled city and fortress, Castillo San Felipe de Barajas, and the Rosario Islands. The best time to travel to Cartagena de Indias, Colombia, is from December to April, with average air temperatures around 80-85°F (27-29°C) and water temperatures around 81°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!