San Antonio Oeste, Argentina offers 7 beaches perfect for sunbathing, surfing, swimming, and more. San Antonio Oeste is known for its beautiful beaches and as a gateway to the stunning coastal landscapes of Patagonia. The best time to travel to San Antonio Oeste, Argentina, is from December to February, with average air temperatures around 75°F (24°C) and water temperatures near 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!