Cerro, Uruguay offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cerro, Montevideo, Uruguay, is known for the Fortaleza del Cerro, a historic fortress offering panoramic views of the city and the Rio de la Plata. The best time to travel to Cerro, Uruguay, is from December to February, 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!