Harmanlar, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Harmanlar, Yalova, Turkey, is known for its proximity to the Termal district, famous for its thermal hot springs and spa resorts. The best time to travel to Harmanlar, Turkey, is in late spring (May to early June) when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!