Murninnie Beach, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Murninnie Beach is known for its proximity to the Eyre Peninsula's stunning coastal landscapes and the nearby Whyalla Conservation Park. The best time to visit Murninnie Beach, Australia, is from December to February, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 20-23°C (68-73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!