Portrane, Ireland offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Dien Hoa, Thua Thien Hue, Vietnam, is known for its proximity to the historic Imperial City of Hue and the scenic Perfume River. The best time to travel to Portrane, Ireland, is from June to August, when the average air temperature is around 15-20°C (59-68°F) and the average water temperature is about 14-16°C (57-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!