Decatur, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dukhan, Al Shahaniya, Qatar, is known for the Dukhan Beach and the nearby Zekreet Peninsula with its unique rock formations and Richard Serra's East-West/West-East art installation. The best time to travel to Decatur, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and water temperature in nearby lakes 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!