Mejia, Peru offers 1 beach perfect for sunbathing, surfing, swimming, and more. Arequipa is known for its historic city center, the Santa Catalina Monastery, and the stunning Colca Canyon. The best time to travel to Mejia, 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!