The highest day temperature in September 2024 was 89°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 76.0°F и 64.5°F respectivly.

The average sea surface temperature in September 2024 for Split was 78.2°F. The maximum and minimum values were 73.8°F and 82.4°F respectively.

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

Precipitation total in September for Split is 2.7 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 7.3 mph. It makes September one of the most windless months of the year for Split.

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 Split in September is 9.8 hours.