Grad Porec, Croatia offers 12 beaches perfect for sunbathing, surfing, swimming, and more. Grad Porec is known for the Euphrasian Basilica, a UNESCO World Heritage Site. The best time to travel to Grad Porec, Croatia, is from May to September, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!