Pleasant Prairie, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Pleasant Prairie is known for the Pleasant Prairie Premium Outlets. The best time to travel to Pleasant Prairie, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and the water temperature in Lake Michigan is approximately 60-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!