Spring and autumn are the ideal times to visit Istanbul and the inland regions. Turkish coasts climate is typically like the Mediterranean with mild winters and hot summers. The majority of rainfall occurs in winter along the coast so the summer months remain hot and dry, perfect for topping up that tan.
As you travel further east in Turkey the extremes in climate become more pronounced with very hot and dry summers reaching highs of 40°C and bitterly cold winters with heavy snowfall. So that spring, autumn, and the shoulder months of summer are the best times to visit Turkey.
High Season (Jun–Aug)
-Prices and temperatures highest
-Istanbul's high season April–May, and September–October
-Christmas–New Year and Easter also busy
Shoulder Season (May & Sep)
-Fewer crowds
-Warm, spring and autumn temperatures, especially in the southwest
-Istanbul's shoulder season is June–August
Low Season (Oct-Apr)
-Accommodations in tourist areas close or offer discounts
-High season in ski resorts
-Istanbul's low season is November to March