Lago Merin, Uruguay offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lago Merin is known for its beautiful Lago Merin beach and the nearby Laguna Merin, which is popular for water sports and birdwatching. The best time to travel to Lago Merin, Uruguay, is from December to February, with average air temperatures around 28°C (82°F) and water temperatures near 25°C (77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!