Sequim, United States offers 15 beaches perfect for sunbathing, surfing, swimming, and more. Sequim is known for the Dungeness Spit, the Olympic Game Farm, and its annual Lavender Festival. The best time to travel to Sequim, United States, is from June to September, when the average air temperature is around 65-75°F and the water temperature is approximately 50-55°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!