Agios Nikolaos, Greece offers 47 beaches perfect for sunbathing, surfing, swimming, and more. Agios Nikolaos is known for its stunning Lake Voulismeni and the nearby archaeological site of Lato. The best time to travel to Agios Nikolaos, Greece, is from May to October, with average air temperatures ranging from 20°C to 30°C (68°F to 86°F) and water temperatures between 20°C and 25°C (68°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!