Corpus Christi weather in September: Corpus Christi, Texas: normal highs, lows, rain and records for September
Corpus Christi in September has a normal high of 91°F and a normal low of 73°F, a daily mean of 82°F, falling from 93°F on the 1st to 89°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 5.42 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 33°C and low of 23°C, 138 mm of precipitation in September.
- NOAA stationCorpus Christi International Airport
- Station IDUSW00012924
- Location27.78°N 97.51°W
- Elevation45 ft (14 m)
- Population317,317
- Jan 68° 48°
- Feb 72° 52°
- Mar 77° 58°
- Apr 83° 64°
- May 87° 71°
- Jun 92° 75°
- Jul 94° 76°
- Aug 95° 76°
- Sep 91° 73°
- Oct 85° 65°
- Nov 76° 56°
- Dec 70° 50°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Corpus Christi in September?
The normal high is 91°F and the normal low 73°F, for a daily mean of 81.9°F. September is 3.5°F cooler than August and 6.8°F warmer than October. September is the 4th warmest month of the year in Corpus Christi and the wettest. Across the month the normal high falls 4°F, from 93°F on September 1 to 89°F on September 30. From one year to the next September's mean temperature typically moves about 1.5°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 80°F and 83°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 93°F | 75°F | 29% | 20% |
| September 8 | 92°F | 74°F | 32% | 22% |
| September 15 | 91°F | 73°F | 32% | 23% |
| September 22 | 90°F | 72°F | 29% | 21% |
| September 30 | 89°F | 70°F | 26% | 18% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 93°F | 75°F | 29% | 20% | 12 h 40 min |
| September 2 | 93°F | 75°F | 30% | 20% | 12 h 40 min |
| September 3 | 93°F | 75°F | 30% | 21% | 12 h 40 min |
| September 4 | 93°F | 75°F | 31% | 21% | 12 h 40 min |
| September 5 | 93°F | 75°F | 31% | 21% | 12 h 40 min |
| September 6 | 92°F | 75°F | 31% | 22% | 12 h 40 min |
| September 7 | 92°F | 75°F | 31% | 22% | 12 h 30 min |
| September 8 | 92°F | 74°F | 32% | 22% | 12 h 30 min |
| September 9 | 92°F | 74°F | 32% | 22% | 12 h 30 min |
| September 10 | 92°F | 74°F | 32% | 22% | 12 h 30 min |
| September 11 | 92°F | 74°F | 32% | 23% | 12 h 30 min |
| September 12 | 91°F | 74°F | 32% | 23% | 12 h 30 min |
| September 13 | 91°F | 74°F | 32% | 23% | 12 h 20 min |
| September 14 | 91°F | 74°F | 32% | 23% | 12 h 20 min |
| September 15 | 91°F | 73°F | 32% | 23% | 12 h 20 min |
| September 16 | 91°F | 73°F | 31% | 22% | 12 h 20 min |
| September 17 | 91°F | 73°F | 31% | 22% | 12 h 20 min |
| September 18 | 90°F | 73°F | 31% | 22% | 12 h 20 min |
| September 19 | 90°F | 73°F | 31% | 22% | 12 h 20 min |
| September 20 | 90°F | 72°F | 30% | 21% | 12 h 10 min |
| September 21 | 90°F | 72°F | 30% | 21% | 12 h 10 min |
| September 22 | 90°F | 72°F | 29% | 21% | 12 h 10 min |
| September 23 | 90°F | 72°F | 29% | 20% | 12 h 10 min |
| September 24 | 89°F | 72°F | 29% | 20% | 12 h 10 min |
| September 25 | 89°F | 71°F | 28% | 20% | 12 h 10 min |
| September 26 | 89°F | 71°F | 28% | 19% | 12 h |
| September 27 | 89°F | 71°F | 27% | 19% | 12 h |
| September 28 | 89°F | 71°F | 27% | 18% | 12 h |
| September 29 | 89°F | 70°F | 26% | 18% | 12 h |
| September 30 | 89°F | 70°F | 26% | 18% | 12 h |
- Normal high
- 91°FSeptember average
- Normal low
- 73°FSeptember average
- Precipitation
- 5.42 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 20
- Daylight
- 12 h 40 min to 12 hSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 29
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012924; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Corpus Christi in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 11 (32%). In all, 5.42 in falls on 10 days of a normal September, 2 of them with an inch or more.
In a normal September in Corpus Christi, 20 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012924.
How humid and windy is Corpus Christi in September?
At 3 p.m. the normal temperature is 87°F with 53% relative humidity and a dew point of 68°F; at 6 a.m. it is 71°F with 89% humidity. The wind averages 9.5 mph, most often from the east in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 71°F | 67°F | 89% | 6.7 mph | 65% |
| 9 a.m. | 79°F | 69°F | 72% | 10.4 mph | 53% |
| noon | 86°F | 68°F | 56% | 11.6 mph | 32% |
| 3 p.m. | 87°F | 68°F | 53% | 13.5 mph | 47% |
| 6 p.m. | 82°F | 68°F | 64% | 12.6 mph | 61% |
| 9 p.m. | 77°F | 69°F | 78% | 8.5 mph | 77% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00012924. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Corpus Christi?
The warmest September temperature on Corpus Christi's official record (since 1887) is 109°F, on September 5, 2000; the coldest is 51°F, on September 30, 2020. The wettest September brought 20.33 in (1967).
The September mean against the 1991-2020 normal of 81.9°F: 2021 82.3°F (+0.4), 2022 83.9°F (+2.0), 2023 86.0°F (+4.1), 2024 83.8°F (+1.9), 2025 83.4°F (+1.5), 2026 87.3°F (+5.4). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 82.3°F | +0.4°F | 7.44 in |
| 2022 | 83.9°F | +2.0°F | 1.66 in |
| 2023 | 86.0°F | +4.1°F | 1.01 in |
| 2024 | 83.8°F | +1.9°F | 6.50 in |
| 2025 | 83.4°F | +1.5°F | 2.92 in |
| 2026 | 87.3°F | +5.4°F | 1.40 in |
Source: records: ACIS, NWS threaded record CRPthr; recent months: ACIS, station USW00012924. Records and recent months use complete months only.
How does September in Corpus Christi compare across Texas?
Across the 321 places PlainClimate covers in Texas, September normal highs run from 81°F in Hart to 95°F in Presidio; Corpus Christi's is 91°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Corpus Christi in August95°F by day, 76°F at night
- Corpus Christi in October85°F by day, 65°F at night
- Corpus Christi through the yearEvery month, frost dates, records and recent years
- Texas in SeptemberThe statewide normal and the warmest and coolest places
- Presidio: Texas's warmest Septembernormal high 95°F