Jefferson City, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Jefferson City, Tennessee, United States, is known for its proximity to Cherokee Lake and Carson-Newman University. The best time to travel to Jefferson City is in May, when the average air temperature is around 70°F (21°C) and water temperature 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!