Kekaha, United States offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Kekaha is known for its proximity to Waimea Canyon and Polihale State Park. The best time to travel to Kekaha, United States, is from May to September, with average air temperatures around 85°F (29°C) and water temperatures near 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!