The highest day temperature in September 2025 was 84°F. The lowest night temperature was 53°F. The average values for day and night temperatures during September were 73.6°F и 64.7°F respectivly.

The average sea surface temperature in September 2025 for Dederkoy was 79.3°F. The maximum and minimum values were 73.2°F and 84.0°F respectively.

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

Precipitation total in September for Dederkoy is 3.1 in.

The average wind speed in September is 7.1 mph.

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 Dederkoy in September is 9.5 hours.