Prince William Sound, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Prince William Sound is known for its stunning fjords, abundant wildlife, and the famous Columbia Glacier. The best time to travel to Prince William Sound is from June to August, with average air temperatures around 55-65°F and water temperatures around 50-55°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!