Eforie, Romania offers 9 beaches perfect for sunbathing, surfing, swimming, and more. Eforie, Constanta, Romania, is known for its therapeutic mud treatments and beautiful Black Sea beaches. The best time to travel to Eforie, Romania, is from June 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!