Sultankoy, Turkey offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Sultankoy, Tekirdag, Turkey, is known for its proximity to the Marmara Sea and the Tekirdag Rakisi, a famous Turkish anise-flavored spirit. The best time to travel to Sultankoy, Turkey, is from June to September, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 22-25°C (72-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!