Gumuldur Inonu, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Gumuldur Inonu, Izmir, Turkey, is known for its beautiful beaches and the nearby ancient city of Ephesus. The best time to travel to Gumuldur Inonu, Turkey, is from May to September, with average air temperatures ranging from 25°C to 30°C and water temperatures around 22°C to 25°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!