Mavri Petra, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mavri Petra is known for its stunning rock formations and proximity to the Meteora monasteries. The best time to travel to Mavri Petra, Greece, is from late May to early October, with average air temperatures around 75-85°F (24-29°C) and water temperatures ranging from 72-79°F (22-26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!