Roswell, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Roswell is known for the Roswell UFO Incident and the International UFO Museum and Research Center. The best time to travel to Roswell, United States, is in the spring (April to June) when the average air temperature is around 70-85°F, and there is no significant body of water to measure an average water temperature. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!