O Carreiro, Spain offers 6 beaches perfect for sunbathing, surfing, swimming, and more. O Carreiro is known for its beautiful beaches and scenic coastal views. The best time to travel to O Carreiro, Spain, is during the summer months of June to August, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!