The highest day temperature in September 2023 was 96°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 90.6°F и 81.0°F respectivly.

The average sea surface temperature in September 2023 for Dauphin Island was 88.7°F. The maximum and minimum values were 86.2°F and 91.0°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 2.6 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 8.3 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 7.4 hours.