Grad Novigrad, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Grad Novigrad, Istria, Croatia, is known for its historic Old Town, the Church of St. Pelagius, and the Novigrad Lapidarium Museum. The best time to travel to Novigrad, Croatia, is from June to September, when the average air temperature is around 75°F (24°C) and the sea temperature is approximately 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!