Willow Beach, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Willow Beach, Arizona, United States, is known for its scenic location along the Colorado River, offering opportunities for boating, fishing, and kayaking. The best time to travel to Willow Beach, United States, is in the spring (March to May) when the average air temperature is around 70-85°F and the water temperature is approximately 60-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!