South Bend, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. South Bend is known for the Willapa National Wildlife Refuge. The best time to travel to South Bend, United States, is from June to August, with average air temperatures around 70-80°F (21-27°C) and water temperatures in nearby lakes around 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!