Ventanilla, Peru offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Ventanilla, Callao, Peru, is known for the Humedales de Ventanilla, a protected wetland area that attracts birdwatchers and nature enthusiasts. The best time to travel to Ventanilla, 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!