Colonia del Sacramento, Uruguay offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Colonia del Sacramento is known for its Barrio Historico, a UNESCO World Heritage site. The best time to visit Colonia del Sacramento, Uruguay, is from November to March, 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!