Alameda, United States offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Alameda is known for the USS Hornet Sea, Air & Space Museum. The best time to travel to Alameda, United States, is from June to September, with average air temperatures around 65-75°F and water temperatures around 60-65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!