October is the end of the "velvet" season in Turkey, and the end of the tourist season in general. On rare days, the August heat is still possible, but still the weather forecast in Turkey changes, the temperature inexorably falls, so by the end of the month the temperature will hardly be above +18 ° C by day!
With the sea that has heated up during the hot summer, everything is a little different: it cools down more slowly, and therefore its temperature is quite comfortable for bathing - + 23 ... 24 ° С, however this is only until the middle of October, after it will be chilly in the water.
Weather in Turkey every day makes it known that autumn is already in the yard and is not going to leave. Particularly cold at night, the thermometer can fall to +17 ... +18 ° С at this time of the day. So do not forget to bring windbreakers and raincoats if you are going to rest in the middle of autumn. Where it is more unpleasant - sudden rains, which can come down "like snow on your head". With each such "guest" the air will get colder and colder, so when you leave the hotel, be sure to take an umbrella with you.
End of October - autumn weather in Turkey, the beginning of the rainy season, which will be poured until May . However this does not mean that the Turkish cities at this time are dying out, on the contrary, a new season begins - the season of sales and shopping tours, when tourists from Europe and P Russia locusts fly to the shopping centers of major cities such as Antalya or Istanbul . In addition, you can make a trip deep into the country, book an excursion or visit some historical ruins, because in the 35-degree heat there are hardly many people wishing to walk on the red-hot stone remains of ancient fortresses, but when in the courtyard +20 ° C, walk "the most it" .