The highest day temperature in September 2023 was 85°F. The lowest night temperature was 66°F. The average values for day and night temperatures during September were 79.8°F и 71.1°F respectivly.

The average sea surface temperature in September 2023 for Gebze was 74.2°F. The maximum and minimum values were 70.4°F and 79.2°F respectively.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Gebze is 1.0 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 9.8 mph. It makes September one of the most windy months of the year for Gebze.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Gebze in September is 9.7 hours.