Split, Croatia offers 20 beaches perfect for sunbathing, surfing, swimming, and more. Split is known for its ancient Diocletian's Palace and stunning Adriatic coastline. The best time to travel to Split, Croatia, is from May to September, with average air temperatures ranging from 70-85°F (21-29°C) and water temperatures from 68-77°F (20-25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!