Issaquah, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Issaquah is not typically known for beach tourism but is recognized for its proximity to outdoor recreational activities and natural beauty. The best time to travel to Issaquah, United States, is from June to September, with average air temperatures ranging from 60°F to 75°F and water temperatures around 60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!