Quilca, Peru offers 20 beaches perfect for sunbathing, surfing, swimming, and more. Quilca, Arequipa, Peru, is known for its picturesque beaches and the historic port that once served as a significant trade hub. The best time to travel to Quilca, Peru, is from December to March, with average air temperatures around 75°F (24°C) and water temperatures near 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!