Gaios, Greece offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Gaios is known for its picturesque harbor, the Venetian fortress on Agios Nikolaos Island, and the nearby Paxos and Antipaxos islands. The best time to travel to Gaios, Greece, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures around 77°F (25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!