Bay Saint Louis Weather in September

What's the weather like in Bay Saint Louis (Mississippi) in September 2024?

The climate in Bay Saint Louis during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Bay Saint Louis and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 20°C (68°F) is normal.

Bay Saint Louis weather averages (imperial / metric)
Daytime temperature 30.2°C 86.4°F
Nightly temperature 20.2°C 68.3°F
Average temperature 25.2°C 77.4°F
Daily sunshine 7.9 hrs
Avg rainfall 143 mm 5.6 ins
Rainy days 10 days
Sea temperature 28.3°C 83°F
Humidity 77%
Windspeed 11.6kph 7 mph

On average September is the 3rd wettest month of the year in Bay Saint Louis with around 143mm 5.6 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 7.9 hours of sunshine per day.

September temperatures in Bay Saint Louis

Bay Saint Louis average temperature in September

September rainfall

Bay Saint Louis average rain in September

September hourly sunshine

Bay Saint Louis 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 Bay Saint Louis in September 2024.

Other monthly averages

Best places to visit in September

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Current (hourly) weather 15 day forecast

Bay Saint Louis weather stats

Bay Saint Louis weather statistics
Hottest month: July 32.1°C 89.8°F
Driest month: October 74mm 2.9ins
Sunniest month: October 8.2hrs
Coldest month: January 14.6°C 58.3°F
Wettest month: August 168mm 6.6ins
Map showing location of Bay Saint Louis (30.30881, -89.33005) Bay Saint Louis map pin © Google

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