Corpus Christi, TX weather in September
Expect hot, oppressively humid weather with some rain in Corpus Christi in September, with highs near 91°F and lows near 73°F. Rain falls on about 10 days.
- Normal high
- 91°F
- Normal low
- 73°F
- Wet days
- 10
- 5.4 in total
- Muggy days
- 26
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 93°F | 89°F |
| Normal low | 75°F | 70°F |
| Chance of a wet day | 30% | 27% |
| Sunrise / sunset | 7:08 am / 7:50 pm | 7:21 am / 7:17 pm |
| Daylight | 12.7 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical September day
- 6 am74°Fdew point 71°F
- 9 am82°Fdew point 73°F
- Noon88°Fdew point 71°F
- 3 pm88°Fdew point 71°F
- 6 pm84°Fdew point 71°F
- 9 pm79°Fdew point 73°F
NOAA hourly normals (local standard time) from Corpus Christi (7 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 30
- Hot dayshigh 90°F or more20 of 30
- Muggy daysdaily mean dew point 65°F or more26 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 5.4 in; a dry September brings about 2.7 in and a wet one about 6.8 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202011: average high 96°F
- Coolest September2003: average high 86°F
- Wettest September2010: 15.9 in
- Driest September2011: 0.8 in
- Highest reading109°F (September 5, 2000)
- Lowest reading51°F (September 30, 2020)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 95°F | 91°F | 85°F |
| Normal low | 76°F | 73°F | 65°F |
| Wet days | 6 | 10 | 7 |
| Comfortable days | 0 | 0 | 4 |
| Daylight | 13.1 h | 12.3 h | 11.5 h |
Highs change by -4°F from August and -6°F into October.
Nearby alternatives in September
- Drier: New Braunfels, TX139 mi · high 92°F · 6 wet days
How Corpus Christi ranks in September
- Normal high36th warmest of 378 cities; 8th of 38 in Texas
- Wet days302nd driest of 378
- Comfortable days303rd most of 342
What to pack for Corpus Christi in September
- Light, breathable clothing – highs near 91°F and about 26 muggy days
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
September has 0 heating degree days and 507 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How hot is Corpus Christi in September?
The normal high is 91°F and the normal low is 73°F. From 1991 to 2020 the hottest September reading was 109°F (September 5, 2000).
Does it rain a lot in Corpus Christi in September?
About 10 days in September have at least 0.01 in of precipitation, and the normal total is 5.4 in. The wettest September in 1991-2020 was in 2010 (15.9 in); the driest was in 2011 (0.8 in).
Is September a good time to visit Corpus Christi?
September ranks 11th of 12 months on our comfort score for Corpus Christi (35 out of 100). It has almost no comfortable days and about 20 days at 90°F or hotter. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Corpus Christi (USW00012924), 7.1 mi W of the city center, 45 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Corpus Christi International Airport (722510-12924), 7.4 mi WSW of the city center, 41 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).