Pefki, Greece offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Pefki, Thessaly And Central Greece, Greece, is known for its beautiful beaches and proximity to the Northern Sporades islands. The best time to travel to Pefki, Greece, is from May to September, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 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!