Funtana, Croatia offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Funtana is known for its Aquapark Aquacolors, a popular water park attraction in Istria, Croatia. The best time to travel to Funtana, Croatia, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures around 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!