Moni Agiou Nikolaou, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Moni Agiou Nikolaou is known for its historic monastery and stunning views of the South Aegean Sea. The best time to travel to Moni Agiou Nikolaou, Greece, is from May to September, with average air temperatures ranging from 75°F to 85°F and water temperatures from 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!