Lake Charles Weather in September

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

The climate in Lake Charles during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Lake Charles and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 20°C (68°F) is normal.

Lake Charles weather averages (imperial / metric)
Daytime temperature 30.7°C 87.2°F
Nightly temperature 20.2°C 68.3°F
Average temperature 25.4°C 77.7°F
Daily sunshine 8.3 hrs
Avg rainfall 138 mm 5.4 ins
Rainy days 9 days
Sea temperature 28.5°C 83.2°F
Humidity 79%
Windspeed 12.2kph 8 mph

On average September is the 2nd wettest month of the year in Lake Charles with around 138mm 5.4 inches of rain making it a wet 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 8.3 hours of sunshine per day.

September temperatures in Lake Charles

Lake Charles average temperature in September

September rainfall

Lake Charles average rain in September

September hourly sunshine

Lake Charles 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 Lake Charles in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Lake Charles weather stats

Lake Charles weather statistics
Hottest month: July 32.7°C 90.9°F
Driest month: April 89mm 3.5ins
Sunniest month: June 10.2hrs
Coldest month: January 15°C 59°F
Wettest month: May 143mm 5.6ins
Map showing location of Lake Charles (30.21309, -93.2044) Lake Charles map pin © Google

Locations nearby

Top United States locations