Castrexe, Spain offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castrexe, Galicia, Spain, is known for the Castrexe Castle and the annual Castrexe Wine Festival. The best time to travel to Castrexe, Spain, is during the summer months of June to August, when the average air temperature is around 70-75°F (21-24°C) and the water temperature is approximately 66-70°F (19-21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!