O Grove, Spain offers 55 beaches perfect for sunbathing, surfing, swimming, and more. O Grove is known for its annual Seafood Festival and the nearby Illa da Toxa. The best time to travel to O Grove, 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 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!