Kahaluu Keauhou, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Kahaluu Keauhou, Hawaii, United States, is known for the Kahaluu Beach Park and the Keauhou Bay. The best time to travel to Kahaluu Keauhou, United States, is from November to April, with average air temperatures around 75°F (24°C) and water temperatures near 77°F (25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!