Alexandria Weather in September

What's the weather like in Alexandria (Louisiana) in September 2025?

The climate in Alexandria during September can be summarized as hot, humid and a little damp.

September is in the fall / autumn in Alexandria and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 31°C (88°F), whilst at night 19°C (66°F) is normal.

Alexandria weather averages (imperial / metric)
Daytime temperature 31°C 87.7°F
Nightly temperature 19.1°C 66.3°F
Average temperature 25°C 77°F
Daily sunshine 8.5 hrs
Avg rainfall 97 mm 3.8 ins
Rainy days 9 days
Sea temperature 27.1°C 80.8°F
Humidity 77%
Windspeed 11.5kph 7 mph

On average September is the driest month of the year in Alexandria with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 hours of sunshine per day.

September temperatures in Alexandria

Alexandria average temperature in September

September rainfall

Alexandria average rain in September

September hourly sunshine

Alexandria average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Alexandria in September 2025.

Other monthly averages

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UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Alexandria weather stats

Alexandria weather statistics
Hottest month: July 33.3°C 91.9°F
Driest month: September 97mm 3.8ins
Sunniest month: June 10.4hrs
Coldest month: January 13.9°C 57°F
Wettest month: December 167mm 6.6ins
Map showing location of Alexandria (31.31129, -92.44514) Alexandria map pin © Google

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