Warm Beach, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Warm Beach, Washington, United States, is known for the Lights of Christmas festival. The best time to travel to Warm Beach, United States, is during the summer months of June to August, when the average air temperature is around 70-75°F and the water temperature is approximately 55-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!