River Arigideen, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. River Arigideen, Munster, Ireland, is known for its scenic beauty and proximity to the historic town of Clonakilty. The best time to travel to River Arigideen, 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 12-16°C (54-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!