Baton Rouge Weather in September

What's the weather like in Baton Rouge (Louisiana) in September 2024?

The climate in Baton Rouge during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Baton Rouge and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 20°C (69°F) is normal.

Baton Rouge weather averages (imperial / metric)
Daytime temperature 31°C 87.8°F
Nightly temperature 20.4°C 68.7°F
Average temperature 25.7°C 78.3°F
Daily sunshine 8.2 hrs
Avg rainfall 122 mm 4.8 ins
Rainy days 10 days
Sea temperature 28.4°C 83.1°F
Humidity 77%
Windspeed 11.5kph 7 mph

On average September is the 4th driest month of the year in Baton Rouge with around 122mm 4.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

September temperatures in Baton Rouge

Baton Rouge average temperature in September

September rainfall

Baton Rouge average rain in September

September hourly sunshine

Baton Rouge 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 Baton Rouge in September 2024.