The highest day temperature in September 2024 was 90°F. The lowest night temperature was 69°F. The average values for day and night temperatures during September were 84.5°F и 78.2°F respectivly.

The average sea surface temperature in September 2024 for Kiawah Island was 82.9°F. The maximum and minimum values were 78.4°F and 89.2°F respectively.

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in September for Kiawah Island is 1.5 in.

The average wind speed in September is 7.2 mph. This value is relatively stable throughout the year.

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 Kiawah Island in September is 7.2 hours.