Corpus Christi weather in September 2025

Q: How hot is it in Corpus Christi in September?

Daytime temperatures usually reach 32°C in Corpus Christi in September with very high heat and humidity, falling to 23°C at night.

Q: How sunny is it in Corpus Christi in September?

There are normally 8 hours of bright sunshine each day in Corpus Christi in September - that's 66% of daylight hours.

Q: How warm is the sea around Corpus Christi in September?

The average sea temperature around Corpus Christi in September is 28°C.

Q: Does it rain in Corpus Christi in September?

There are usually 9 days with some rain in Corpus Christi in September and the average monthly rainfall is 139mm.

Q: What is the chance of a cyclone in Corpus Christi in September?

On average less than 1 day in September in Corpus Christi is likely to be affected by the passage of one or more tropical storms.

Expect daytime maximum temperatures of 90°F in Corpus Christi, Texas in September and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 5.5 inches of rainfall in the month.

90
90°F max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
73
73°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
5.5
5.5 inches of monthly rainfall
10
10 (Very High) UV index
82
82°F sea temperature

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The September weather guide for Texas (Corpus Christi) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

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How hot is it in Corpus Christi in September?

Daytime temperatures usually reach 90°F in Corpus Christi in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Corpus Christi in September?

There are normally 8 hours of bright sunshine each day in Corpus Christi in September - that's 66% of daylight hours.

How warm is the sea around Corpus Christi in September?

The average sea temperature around Corpus Christi in September is 82°F.

Does it rain in Corpus Christi in September?

There are usually 9 days with some rain in Corpus Christi in September and the average monthly rainfall is 5.5 inches.

What is the chance of a hurricane in Corpus Christi in September?

On average less than 1 day in September in Corpus Christi is likely to be affected by the passage of one or more tropical storms.

Corpus Christi September sunrise & sunset times

Browse the sunrise and sunset times for Corpus Christi in September 2025. Select a month to view Corpus Christi sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	06:09	18:50
Monday, 15th September 2025	06:15	18:34
Tuesday, 30th September 2025	06:22	18:16

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Texas - quick facts
Flight time^✝	10 hours
Time difference	UK -6 to -7 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Tourist info	Texas Economic Development & Tourism Division