Dungarvan, Ireland offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Dungarvan, Munster, Ireland, is known for the Waterford Greenway, a scenic cycling and walking trail. The best time to travel to Dungarvan, Ireland, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 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!