Fort Pierce, United States offers 15 beaches perfect for sunbathing, surfing, swimming, and more. Fort Pierce is known for the National Navy UDT-SEAL Museum and the historic Sunrise Theatre. The best time to travel to Fort Pierce, United States, is from March to May, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!