Visiting turkey

Planning to visit turkey in mid november interested to know how would be the weather and whether all tourist spots would be open? How different wud be weather from dubai. Planning for istanbul and antara.

Any advice on nightlife spots, hangouts, tourist attractions and shopping areas inthese places would be appreciated :)
TIA

The weather will be between 5-15 C and nothing like Dubai. Tourist spots will be open as usual.
Most of the historic spots are in SultanAhmet and the nightlife you can find in Taksim area.
Enjoy
Z