1) Northern coastal region (Black Sea): cooler, more rain

2) Southern and Western coastal regions (Mediterranean and Marmara Sea): mild

3) Central interior region (Anatolian plateau): cold winters, hot, dry summers

Average Temperatures of major cities in Centigrade (Jan-Dec):

Antalya; 10 11 13 16 20 25 28 28 25 20 15 12
Izmir: 9 10 11 16 20 25 28 27 23 18 15 10
Istanbul: 5 6 7 12 16 22 23 23 20 16 12 8
Trazbon: 6 7 7 11 15 20 22 22 19 16 12 9
Ankara: 0 1 6 12 16 20 23 23 18 13 8 2
Erzurum: - 9 -7 -3 5 12 15 19 20 15 9 2 -5