Baiona, Spain offers 9 beaches perfect for sunbathing, surfing, swimming, and more. Baiona is known for the Monterreal Castle and the replica of the Pinta ship. The best time to travel to Baiona, Spain, is from June to September, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!