An Indian summer, known in Turkish as "pastırma sıcakları," is bringing warm and sunny weather to much of Türkiye in mid-October. Forecasts by the Turkish State Meteorological Service (MGM) show temperatures above seasonal norms over the weekend.
On Saturday, temperatures are expected to hit 33 C in Adana, 28 C in Izmir and Antalya and 26 C in Bursa, while Antalya will reach 30 C on Sunday. Istanbul will see highs of 24-25 C.
Thunderstorms from Monday
The weather turns from Monday, with thunderstorms expected in many provinces including Istanbul, Izmir, Antalya, Bursa, Adana and Diyarbakır. Temperatures will drop noticeably by midweek, with Istanbul's high falling to 19 C.

Five-day forecast
MGM forecasts for 12 provinces, Oct. 10-14 (high / low):

Source: Turkish State Meteorological Service, forecasts issued Oct. 9, 2026. Forecasts may change.