Mimarsinan Silivri, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mimarsinan Silivri, Istanbul, Turkey, is known for its proximity to the Marmara Sea and the historical Silivri Fortress. The best time to travel to Mimarsinan Silivri, Turkey, is from June to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 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!