The highest day temperature in September 2024 was 90°F. The lowest night temperature was 78°F. The average values for day and night temperatures during September were 84.8°F и 83.1°F respectivly.

The average sea surface temperature in September 2024 for Dauphin Island was 87.5°F. The maximum and minimum values were 83.8°F and 89.8°F respectively.

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

Precipitation total in September for Dauphin Island is 3.1 in. It makes september the most rainy month of the year.

The average wind speed in September is 9.0 mph. It makes September one of the most windless months of the year for Dauphin Island.

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 Dauphin Island in September is 7.3 hours.