Mangalia, Romania offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Mangalia is known for its ancient Callatis ruins, therapeutic mud baths, and the Mangalia Marina. The best time to travel to Mangalia, 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!