Miller, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Miller is not typically known for travel and beach tourism. The best time to travel to Miller, United States, is during late spring or early fall when the average air temperature is around 60-70°F and water temperature is approximately 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!