Arnold Air Force Base, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Arnold Air Force Base is known for the Arnold Engineering Development Complex, which is a significant attraction for those interested in aerospace and engineering. The best time to visit Arnold Air Force Base is in late spring (May), when the average air temperature is around 70°F (21°C) and the nearby 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!