Frangokastello, Greece offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Frangokastello is known for its Venetian castle and the legendary Drosoulites phenomenon. The best time to travel to Frangokastello, Greece, is from May to September, with average air temperatures ranging from 25-30°C (77-86°F) and water temperatures around 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!