Wynnum, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Wynnum is known for its beautiful waterfront esplanade and family-friendly beaches. The best time to travel to Wynnum, Australia, is from September to November, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 21-23°C (70-73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!