Errisbeg, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Errisbeg, Connaught, Ireland, is known for its proximity to the picturesque Roundstone village and the stunning views from Errisbeg Hill. The best time to travel to Errisbeg, 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!