Corpus Christi Weather in September

What's the weather like in Corpus Christi (Texas) in September 2025?

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

September is in the fall / autumn in Corpus Christi 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.

Corpus Christi weather averages (imperial / metric)
Daytime temperature 32.5°C 90.5°F
Nightly temperature 22.7°C 72.9°F
Average temperature 27.6°C 81.7°F
Daily sunshine 8.7 hrs
Avg rainfall 139 mm 5.5 ins
Rainy days 9 days
Sea temperature 28.7°C 83.6°F
Humidity 76%
Windspeed 16.6kph 10 mph

On average September is the wettest month of the year in Corpus Christi with around 139mm 5.5 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 8.7 hours of sunshine per day.

September temperatures in Corpus Christi

Corpus Christi average temperature in September

September rainfall

Corpus Christi average rain in September

September hourly sunshine

Corpus Christi 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 Corpus Christi 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

Corpus Christi weather stats

Corpus Christi weather statistics
Hottest month: August 34.1°C 93.4°F
Driest month: March 25mm 1ins
Sunniest month: July 11.2hrs
Coldest month: January 18.3°C 64.9°F
Wettest month: September 139mm 5.5ins
Map showing location of Corpus Christi (27.80058, -97.39638) Corpus Christi map pin © Google

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