Susak, Croatia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Susak is known for its unique sandy beaches and traditional folk costumes. The best time to travel to Susak, Croatia, is from June to September, when the average air temperature is around 75°F (24°C) and the sea temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!