Milna, Croatia offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Milna is known for its picturesque marina and historic stone buildings. The best time to travel to Milna, Croatia, is from June to September, when the average air temperature is around 75°F (24°C) and the sea temperature is approximately 77°F (25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!