Comandante Portillo, Argentina offers 1 beach perfect for sunbathing, surfing, swimming, and more. Comandante Portillo is known for its proximity to the stunning landscapes of Tierra del Fuego National Park and the Beagle Channel. The best time to travel to Comandante Portillo, Argentina, is during the summer months of December to February, when the average air temperature is around 75°F (24°C) and water temperature is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!