Fairhaven, United States offers 12 beaches perfect for sunbathing, surfing, swimming, and more. Fairhaven is known for its historical architecture designed by Henry H. Rogers, including the Millicent Library and Fairhaven Town Hall. The best time to travel to Fairhaven, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and the water temperature is approximately 65-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!