Quilmas, Spain offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Quilmas is known for its stunning coastal landscapes and serene beaches in Galicia, Spain. The best time to travel to Quilmas, Spain, is during the late spring to early autumn months (May to September), when the average air temperature ranges from 18°C to 25°C (64°F to 77°F) and the water temperature is around 16°C to 20°C (61°F to 68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!