San Martin de los Andes, Argentina offers 7 beaches perfect for sunbathing, surfing, swimming, and more. San Martin de los Andes is known for its proximity to Lanin National Park and the Chapelco Ski Resort. The best time to travel to San Martin de los Andes, Argentina, is during the summer months of December to February, when the average air temperature is around 70°F (21°C) and the water temperature in nearby lakes is approximately 64°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!