Mundaka, Spain offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Mundaka is known for its world-famous left-hand surf break. The best time to travel to Mundaka, Spain, is from June to September, 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!