Republican City, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Republican City is known for Harlan County Lake, a popular destination for fishing, boating, and outdoor recreation. The best time to travel to Republican City, United States, is in late spring or early fall when the average air temperature is around 70°F (21°C) and the water temperature in nearby Harlan County Lake is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!