Zagreb, Croatia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Zagreb is known for its historic Upper Town, the Museum of Broken Relationships, and the vibrant Dolac Market. The best time to travel to Zagreb, Croatia, is from May to September, with average air temperatures ranging from 60°F to 80°F and water temperatures around 70°F in nearby lakes. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!