Rio Gallegos, Argentina offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Rio Gallegos is known for its proximity to the Magallanes Basin and as a gateway to the stunning landscapes of Patagonia. The best time to travel to Rio Gallegos, Argentina, is from December to February, with average air temperatures around 15°C (59°F) and water temperatures near 10°C (50°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!