Kolios, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kolios, Thessaly, Greece, is known for its picturesque landscapes and traditional Greek village charm. The best time to travel to Kolios, Greece, is from June to September, with average air temperatures around 77°F (25°C) and water temperatures near 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!