Marmara, Aegean and Mediterranean coasts of Turkey display a typical Mediterranean climate of hot summers and mild winters, though Istanbul can have some cold snaps with snow in the winter. July and August are the hottest months with temperatures around 30°C with quite high humidity during the summer months. Temperatures increase a few degrees when travelling to the south and water temperatures also become warmer. The swimming season is from June to September along the Marmara and north Aegean coasts, while it is from April to October on the south Aegean and Mediterranean coasts.
The best time to travel:
Istanbul and European Turkey experience hot summers and cold winters with snow being a common feature. Spring and autumn, from April to May and from September to mid November respectively, are the ideal times to visit Istanbul and the inland regions when temperatures are pleasant and the skies are clear.