Jamestown, United States offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Jamestown is known for its historic Gold Rush charm and proximity to natural attractions rather than beach tourism. The best time to travel to Jamestown, United States, is in late spring or early fall when the average air temperature is around 60-70°F and the water temperature is approximately 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!