Newtonhill, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Newtonhill is known for its scenic coastal views and proximity to the historic Dunnottar Castle. The best time to visit Newtonhill, United Kingdom, is during the summer months of June to August, when the average air temperature is around 15-18°C (59-64°F) and the North Sea water temperature is approximately 12-15°C (54-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!