Kornic, Croatia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Kornic, Primorje Gorski Kotar, Croatia, is known for its proximity to the historic town of Krk and the beautiful beaches of the Adriatic Sea. The best time to travel to Kornic, Croatia, is from June to September, when the average air temperature is around 25°C (77°F) and the sea temperature is approximately 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!