Suadiye, Turkey offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Suadiye, Istanbul, Turkey, is known for its upscale shopping street, Bagdat Avenue. The best time to travel to Suadiye, Turkey, is from May to September, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!