Stonehaven, United Kingdom offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Stonehaven is known for Dunnottar Castle, a dramatic cliffside fortress with historical significance. The best time to visit Stonehaven, United Kingdom, is from June to August, when the average air temperature is around 15-18°C (59-64°F) and the water temperature is approximately 12-14°C (54-57°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!