I am from Ankara I lived there for 8 years and the rest of my life passed at the aegean section of Turkey.

For Ankara the weather is quite hot during august between 30 and 38 degree but there is no humidity so night time can be even cold.

But for Aegean region the weather will be hotter than ankara and humidity is nearly 80% - 90% so be ready for sweating

:)

Have a nice trip