World Resorts Turkey Istanbul Weather

Istanbul weather in September

Weather in Istanbul: September

Average day temperature: 78.5°F
Average night temperature: 71.1°F
Sea water temperature: 73.4°F
Number of sunny days: 20 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 2 days
Precipitation totals: 0.9 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 84°F. At the same time the lowest night temperature was 63°F. Day and night temperature averages during September were 78.6°F and 70.5°F.

Sea water temperature in Istanbul in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 75.0°F. The highest and lowest sea temperatures during the month were 77.2°F and 71.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Istanbul in September is 0.9 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 11.2 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.8.

Best time for vacation in Istanbul

Sunniest months:
July 28 days
August 28 days
June 22 days
Warmest months:
July 84.9 °F
August 84.8 °F
June 79.7 °F
Warmest sea temp:
August 76.0 °F
July 74.7 °F
September 73.4 °F
Coldest months:
January 48.5 °F
February 50.3 °F
December 53.0 °F
Rainiest months:
January 5 days
December 4 days
March 4 days
Windiest months:
August 13.7 mph
July 12.1 mph
January 12.0 mph

Istanbul on a weather map

Istanbul
+57°F
SW 10 mph
Feels like: +54°F
Precip.: 0%
Places in Turkey:
Name
°F
+68°F
+68°F
+66°F
+61°F
+64°F
+70°F
+61°F
+68°F
+63°F
+68°F
+68°F
+68°F
+66°F
+57°F
+68°F
24 Hours Forecast
Istanbul
Local time: 10:16
November 13, wednesday
1200
59°F
SW
6 mph
1500
57°F
S
8 mph
1800
55°F
S
11 mph
2100
54°F
S
9 mph
November 14, thursday
0000
54°F
S
9 mph
0300
54°F
S
7 mph
0600
54°F
SW
9 mph
0900
55°F
SW
6 mph
Units of measurement: °C / °F