Flowery Branch, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Flowery Branch, Georgia, United States, is known for its proximity to Lake Lanier and the Atlanta Falcons' training camp. The best time to travel to Flowery Branch, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the nearby Lake Lanier water temperature is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!