Lagunillas, Argentina offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lagunillas is known for its stunning natural landscapes and serene beach tourism experiences. The best time to travel to Lagunillas, Argentina, is during the summer months of December to February, when the average air temperature is around 75°F (24°C) and the 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!