The highest day temperature in September 2023 was 87°F. The lowest night temperature was 59°F. The average values for day and night temperatures during September were 80.4°F и 69.6°F respectivly.

The average sea surface temperature in September 2023 for Supetar was 76.9°F. The maximum and minimum values were 74.0°F and 79.4°F respectively.

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

Precipitation total in September for Supetar is 2.9 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 7.7 mph. It makes September one of the most windless months of the year for Supetar.

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 Supetar in September is 10.0 hours.