Opcina Nerezisca, Croatia offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Opcina Nerezisca, Istria, Croatia, is known for its proximity to the Brijuni National Park and the historic town of Pula. The best time to travel to Opcina Nerezisca, Croatia, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures from 20°C to 25°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!