I'm looking at a possible trip to Greece and Turkey this fall. We will have about 2 weeks, either Aug. 28 - Sept. 12, or Oct. 9 - 24 (dates are constrained due to work - it has to be one or the other).
I generally prefer traveling outside the peak summer season, to avoid both heat and crowds. My favorite time is mid-late September, maybe a little later in southern Europe. BUt that's not an option for us this year.
I'm wondering if mid-October would still be nice and warm in Greece and Turkey. We would probably only do 2-3 days in Athens and on the mainland, then spend at least a week split between 2-3 Greek islands, then hop over to Turkey for a few days split between Istanbul and maybe Ephesus (not sure about the exact itinerary yet).
Is it typically still reasonably warm in mid-October?