Abercastle, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Abercastle is known for its picturesque harbor and the historic Abercastle Bay, popular for kayaking and coastal walks. The best time to visit Abercastle, United Kingdom, is during the summer months of June to August, when the average air temperature is around 15-20°C (59-68°F) and the sea temperature is approximately 14-17°C (57-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!