Istanbul, Turkey
Weather by months in Istanbul
January
February
March
April
May
June
July
August
September
October
November
December
27ºC
Avg. daily temperature
31ºC
High
14ºC
Low
30 mm
Total precipitation
30%
Avg. humidity
4m/s
Avg. wind
20 
Sunny days
7 
Cloudy days
3 
Rainy days
Air temperature
September
The temperature is between 17 and 25 degrees Celsius.
Low17º25ºHigh
1.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
4.9The temperature is between 19 and 27 degrees Celsius.
Low19º27ºHigh
7.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
10.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
13.9The temperature is between 19 and 27 degrees Celsius.
Low19º27ºHigh
16.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
18.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
20.9The temperature is between 17 and 25 degrees Celsius.
Low17º25ºHigh
22.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
24.9The temperature is between 17 and 25 degrees Celsius.
Low17º25ºHigh
26.9The temperature is between 18 and 26 degrees Celsius.
Low18º26ºHigh
28.9In Istanbul, September offers a maximum daytime temperature of around 31ºC and a minimum nighttime temperature of 14ºC. The average daily high is 27ºC and the average nightly low is 18ºC. This is a lovely time for outdoor activities, such as attending the Istanbul Biennial or relaxing in the lush surroundings of Emirgan Park.
