Castine, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castine, Maine, United States, is known for the Maine Maritime Academy and the historic Fort George. The best time to travel to Castine, United States, is during the summer months of June to August, when the average air temperature is around 70°F (21°C) and the water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
