Gumuldur Cumhuriyet, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Gumuldur Cumhuriyet, Izmir, Turkey, is known for its proximity to the ancient city of Ephesus and the beautiful beaches along the Aegean Sea. The best time to travel to Gumuldur Cumhuriyet, Turkey, is from May to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!