Fairfield Bay, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Fairfield Bay is known for Greers Ferry Lake and the Indian Rock Cave and Trail. The best time to travel to Fairfield Bay, United States, is in late spring (May), when the average air temperature is around 75°F (24°C) and the water temperature is approximately 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!