Selce, Croatia offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Selce, Primorje Gorski Kotar, Croatia, is known for its beautiful beaches and the Selce Summer Festival. The best time to travel to Selce, 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!