Istanbul weather by month › September
Istanbul in September: weather and what to expect
Yes. September is one of the best months to visit Istanbul.
September weather in Istanbul
Daytime high78°F 26°C
Night low62°F 16°C
Rain2.0 in 52 mm
AirA little humid
SunSunny
In September, Istanbul averages highs of 78°F (26°C) and lows of 62°F (16°C), with 2.0 in (52 mm) of rain. The air feels a little humid and the sun is sunny. 1991–2020 averages, not a forecast.
Pack: light layers.
Places with the same weather in September
Match out of 100 for September, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec