Costinesti, Romania offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Costinesti is known for its vibrant nightlife, the Obelisk monument, and the shipwreck of Evangelia. The best time to travel to Costinesti, Romania, is from June to August, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!