Brownsville Weather in September

What's the weather like in Brownsville (Texas) in September 2024?

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

September is in the fall / autumn in Brownsville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 23°C (73°F) is normal.

Brownsville weather averages (imperial / metric)
Daytime temperature 32.5°C 90.5°F
Nightly temperature 22.9°C 73.2°F
Average temperature 27.7°C 81.9°F
Daily sunshine 8.8 hrs
Avg rainfall 145 mm 5.7 ins
Rainy days 10 days
Sea temperature 29°C 84.2°F
Humidity 76%
Windspeed 15.1kph 9 mph

On average September is the wettest month of the year in Brownsville with around 145mm 5.7 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 8.8 hours of sunshine per day.

September temperatures in Brownsville

Brownsville average temperature in September

September rainfall

Brownsville average rain in September

September hourly sunshine

Brownsville 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 Brownsville in September 2024.