Saint-Louis Weather in September

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

The climate in Saint-Louis during September can be summarized as very hot, humid and a little damp.

September is in the fall / autumn in Saint-Louis and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 25°C (77°F) is normal.

Saint-Louis weather averages (imperial / metric)
Daytime temperature 32.6°C 90.6°F
Nightly temperature 24.9°C 76.7°F
Average temperature 28.7°C 83.7°F
Daily sunshine 8 hrs
Avg rainfall 95 mm 3.7 ins
Rainy days 6 days
Sea temperature 28.4°C 83.1°F
Humidity 76%
Windspeed 7.6kph 5 mph

On average September is the wettest month of the year in Saint-Louis with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in Saint-Louis

Saint-Louis average temperature in September

September rainfall

Saint-Louis average rain in September

September hourly sunshine

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 Saint-Louis in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Saint-Louis weather stats

Saint-Louis weather statistics
Hottest month: September 32.4°C 90.3°F
Driest month: April 0mm 0ins
Sunniest month: April 10hrs
Coldest month: January 29.9°C 85.8°F
Wettest month: September 95mm 3.7ins
Map showing location of Saint-Louis (16.01793, -16.48962) Saint-Louis map pin © Google

Locations nearby