Myrtleville Beach, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Myrtleville Beach is known for its scenic coastal views and proximity to the historic town of Crosshaven. The best time to visit Myrtleville Beach, Ireland, is during the summer months of June to August, when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 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!