Corpus Christi, Texas Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Corpus Christi weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 8:07 AM CDT · Open-Meteo
- TodaySep 21Clear——94°79°—
- TuesdaySep 22Clear10%—93°78°-1°
- WednesdaySep 23Overcast20%—90°83°-3°
- ThursdaySep 24Light Drizzle18%—90°84°0°
- FridaySep 25Drizzle15%—89°83°-1°
- SaturdaySep 26Overcast10%—89°83°0°
- SundaySep 27Overcast22%—88°83°-1°
Air quality now AQI 39 · Good
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.61 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 1.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 8.
- Present
- AQI 33
- UV peak
- 1.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.61 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.61
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:33 PM
- Moonset
- 2:26 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
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Corpus Christi at a glance
- Today vs. normal: Today averages 87°F (high 94°F, low 79°F), 8°F above the 79°F normal for Sep 21
- Last frost: January 15 (1991–2020 median, NOAA station 6 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant tomatoes, peppers, beans, squash; harvest beans, summer squash, winter squash
16-Day Forecast — Corpus Christi
- Mon93°79°5%
- Tue93°78°10%
- Wed90°83°20%
- Thu90°84°18%
- Fri89°83°15%
- Sat89°83°10%
- Sun88°83°22%
- Mon86°80°14%
- Tue89°83°24%
- Wed87°81°31%
- Thu87°77°18%
- Fri84°75°40%
- Sat87°74°40%
- Sun91°78°29%
- Mon84°70°13%
- Tue80°69°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Corpus Christi
Interactive wind and temperature map centered on Corpus Christi — it loads in your browser. Open the full weather map.
Right now in the garden
Peak growing season
As of September 21, the growing season is at its peak — the first frost (around December 30) is weeks away. Fall transplants go in about 10–12 weeks before the first frost, October 7 to October 21 here. This city's planting calendar for September: plant tomatoes, peppers, beans, and squash; harvest beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Corpus Christi
SPC includes Corpus Christi in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Corpus Christi
Corpus Christi sits in Nueces County, where the year’s longest day runs 13h 54m of daylight and its shortest just 10h 23m — a swing of +3h 31m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Houston, the state’s largest city, lies about 186 miles to the NE. The nearest town Corpus Christi tracks is McAllen, roughly 117 miles to the SSW.
Air quality in Corpus Christi
Air quality in Corpus Christi’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 46). See the full air-quality history for Corpus Christi.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | radishes, fall brassicas, carrots |
| February | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| March | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| April | beans, squash | lettuce, peas, beans, summer squash |
| May | squash | tomatoes, peppers, beans, summer squash, winter squash, garlic |
| June | squash | tomatoes, peppers, beans, summer squash, winter squash |
| July | beans, squash | tomatoes, summer squash, winter squash |
| August | beans, squash | summer squash, winter squash |
| September | tomatoes, peppers, beans, squash | beans, summer squash, winter squash |
| October | beans, squash, fall brassicas, carrots | beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| December | lettuce, peas, spinach, radishes, garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
A year in weather
August is Corpus Christi's warmest stretch (~84°F) and January its coldest (~56°F); precipitation crests in September at 6.5 inches and ebbs in February to 1.5 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 1.8″ | 4 |
| February | 61° | 1.5″ | 3 |
| March | 66° | 2.0″ | 3 |
| April | 71° | 1.8″ | 3 |
| May | 77° | 3.7″ | 4 |
| June | 82° | 4.1″ | 4 |
| July | 83° | 2.3″ | 3 |
| August | 84° | 1.8″ | 3 |
| September | 80° | 6.5″ | 8 |
| October | 74° | 2.7″ | 4 |
| November | 66° | 2.3″ | 3 |
| December | 59° | 1.8″ | 3 |
Regional context
Similar climates Ingleside on the Bay, TX, Tierra Grande, TX, Portland, TX
Per NOAA NCEI 1991-2020 normals, Corpus Christi runs from a 56°F January mean to 83°F in July, a 27°F seasonal spread, with near 32.3 inches of precipitation across about 44 wet days.
Summer convection drives Corpus Christi's precipitation: September logs 6.5 inches on 7.5 rainy days, against February's 1.5 inches on 3.1 — warm-season storms carry Corpus Christi's moisture. That summer-storm rhythm groups Corpus Christi with places like Ingleside on the Bay, TX, Tierra Grande, TX and Portland, TX.
Around January 15, Corpus Christi sheds its freezing nights — lettuce, chard, arugula, and mustard greens go into Corpus Christi's beds. Heat-demanding starts go out a fortnight on in Corpus Christi, after the soil warms and cold snaps clear. Frost returns to Corpus Christi near December 30, ending the tender-crop season. Open lawns in Corpus Christi whiten first when frost returns.
Similar climates: Ingleside on the Bay, TX, Tierra Grande, TX, Portland, TX, Ingleside, TX, Gregory, TX.
Frequently asked
- When does it freeze in Corpus Christi?
- In Corpus Christi, expect the last spring frost near January 15; Corpus Christi's first autumn frost comes around December 30.
- What is the rainy season in Corpus Christi?
- Corpus Christi sees its heaviest rain in September (around 6.5 inches), part of roughly 32 inches a year.
- What is the warmest month in Corpus Christi?
- August is Corpus Christi's warmest month, averaging about 84°F.
- What is the coldest month in Corpus Christi?
- Corpus Christi bottoms out in January, with a mean near 56°F.
- When can I start a vegetable garden in Corpus Christi?
- Corpus Christi's last frost (January 15) cues hardy greens; in Corpus Christi, hold heat-lovers two weeks past.
- How many rainy days does Corpus Christi get?
- Corpus Christi averages about 44 days with measurable rain or snow each year.
- What hardiness zone is Corpus Christi?
- Corpus Christi's hardiness zone tracks its winter low; with January near 56°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Corpus Christi?
- Corpus Christi's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Corpus Christi?
- See this week's day-by-day rain chances for Corpus Christi in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Corpus Christi?
- Current conditions for Corpus Christi and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Corpus Christi forecast updated?
- The Corpus Christi forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Corpus Christi?
- Today's sunrise and sunset times for Corpus Christi are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Corpus Christi?
- The next few days in Corpus Christi's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Corpus Christi sits at 27.7°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Corpus Christi
- 78373
- 78401
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- 78403
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