Tanaka, Peru offers 1 beach perfect for sunbathing, surfing, swimming, and more. Arequipa, Arequipa is known for its historic city center featuring the Santa Catalina Monastery and the stunning architecture made from white volcanic stone called sillar. The best time to travel to Tanaka, Peru, is from May to September, with average air temperatures around 68°F (20°C) and water temperatures near 64°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!