Dorena, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dorena, Oregon, United States, is known for the Dorena Lake and the Row River Trail. The best time to travel to Dorena, United States, is in late spring or early fall when the average air temperature is around 65-75°F, and the water temperature in nearby lakes 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!