Kos, Greece offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Saha Gu is known for Dadaepo Beach and the Nakdong River Estuary. The best time to travel to Kos, Greece, is from May to October, with average air temperatures ranging from 25°C to 30°C (77°F to 86°F) and water temperatures from 21°C to 25°C (70°F to 77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!