December is one of the cooler months of the year in Corpus Christi, with average highs near 21.1°C and lows around 12.1°C (mean 16.6°C). It is one of the drier months, averaging 37 mm of rainfall and 77% relative humidity across the period.
December is one of the cooler months of the year in Corpus Christi. Across 45 years of records, the warmest December in Corpus Christi was 2021 — when the month averaged 21.2°C — while the coldest was 1989 at 10.5°C. Typical December days reach 21.1°C with nights near 12.1°C. The long-term trend is warming, about 0.4°C per decade.
December is one of the drier months in Corpus Christi, averaging 37 mm of rainfall. The wettest December on record was 1991 with 148 mm, while the driest was 2010 at 6 mm.
Relative humidity in Corpus Christi during December averages 77%. The most humid December was 1984 at 83%, and the least humid was 1999 at 69%.
December receives about 2.7 kWh/m²/day of solar energy in Corpus Christi. The sunniest Decembers were 2003 and 2010 at 3.4 kWh/m²/day, and the cloudiest were 1986 and 1992 at 2.
Average wind speed in Corpus Christi during December is 3.6 m/s. The windiest December was 2008 at 4.2 m/s, while the calmest was 2023 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.6°C | 17.0°C | 16.1°C | 16.7°C | 18.4°C | +2.8°C |
| Avg High | 20.0°C | 21.4°C | 20.7°C | 21.2°C | 23.1°C | +3.1°C |
| Avg Low | 11.1°C | 12.6°C | 11.5°C | 12.2°C | 13.7°C | +2.6°C |
| Avg Rain | 34 mm | 50 mm | 38 mm | 37 mm | 18 mm | -16 mm |
December temperatures in Corpus Christi have risen by about 2.9°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -7.6°C (1989) to a record high of 30.3°C (2008).
Rainfall in December is one of the drier months, averaging 37 mm, with a wettest year of 148 mm.
A good time to visit Corpus Christi
December is a good time to visit Corpus Christi, with days averaging 21.1°C and nights around 12.1°C (mean 16.6°C, cooler than Corpus Christi's yearly average) and moderate rainfall. April and November are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 23.3°C | 18.6°C | 13.8°C | 28.3°C | 6.2°C | 24 mm | 78% | 2.9 m/s | — |
| 2024 | 24.3°C | 19.8°C | 15.2°C | 29.7°C | 4.9°C | 22 mm | 79% | 3.2 m/s | 2.8 |
| 2023 | 22.4°C | 17.8°C | 13.2°C | 28.3°C | 5.8°C | 25 mm | 79% | 2.6 m/s | 3 |
| 2022 | 21.6°C | 16.9°C | 12.3°C | 29.3°C | -4.3°C | 11 mm | 78% | 3.3 m/s | 2.8 |
| 2021 🔥 | 25.5°C | 21.2°C | 16.8°C | 29.8°C | 9.1°C | 9 mm | 82% | 3.5 m/s | 3.1 |
| 2020 | 21.6°C | 16.2°C | 10.8°C | 27.7°C | 4.2°C | 19 mm | 73% | 3.4 m/s | 3.3 |
| 2019 | 22.0°C | 17.0°C | 11.9°C | 28.5°C | 2.9°C | 55 mm | 75% | 3 m/s | 3.1 |
| 2018 | 19.9°C | 15.5°C | 11.1°C | 24.7°C | 5.4°C | 30 mm | 79% | 3.6 m/s | 3 |
| 2017 | 19.8°C | 15.3°C | 10.8°C | 28.7°C | 1.7°C | 68 mm | 78% | 3.3 m/s | 2.4 |
| 2016 | 22.0°C | 17.7°C | 13.5°C | 29.1°C | 0.3°C | 73 mm | 81% | 3.6 m/s | 2.1 |
| 2015 | 22.6°C | 18.0°C | 13.3°C | 28.4°C | 6.9°C | 21 mm | 79% | 3.7 m/s | 2.8 |
| 2014 | 21.1°C | 17.2°C | 13.3°C | 26.2°C | 4.2°C | 42 mm | 83% | 3.4 m/s | 2.4 |
| 2013 | 18.6°C | 14.1°C | 9.6°C | 26.9°C | 2.4°C | 28 mm | 79% | 3.3 m/s | 2.5 |
| 2012 | 23.8°C | 18.9°C | 14.0°C | 29.3°C | 3.8°C | 8 mm | 71% | 3.7 m/s | 3 |
| 2011 | 20.9°C | 16.6°C | 12.4°C | 26.6°C | 2.6°C | 39 mm | 77% | 3.9 m/s | 2.4 |
| 2010 | 21.7°C | 16.8°C | 11.9°C | 27.2°C | 2.5°C | 6 mm | 72% | 3.8 m/s | 3.4 |
| 2009 | 17.1°C | 13.1°C | 9.0°C | 25.7°C | 0.9°C | 98 mm | 82% | 3.5 m/s | 2.4 |
| 2008 | 22.3°C | 17.3°C | 12.3°C | 30.3°C | 2.6°C | 8 mm | 72% | 4.2 m/s | 2.7 |
| 2007 | 23.1°C | 18.3°C | 13.5°C | 29.5°C | 4.7°C | 7 mm | 72% | 3.7 m/s | 3.3 |
| 2006 | 20.6°C | 16.2°C | 11.9°C | 26.7°C | 2.4°C | 71 mm | 76% | 3.6 m/s | 2.6 |
| 2005 | 21.4°C | 16.7°C | 11.9°C | 28.4°C | 3.2°C | 15 mm | 73% | 3.6 m/s | 2.7 |
| 2004 | 20.7°C | 16.0°C | 11.2°C | 28.0°C | -0.2°C | 15 mm | 74% | 3.5 m/s | 2.9 |
| 2003 | 21.1°C | 16.5°C | 11.8°C | 25.4°C | 3.1°C | 9 mm | 71% | 3.7 m/s | 3.4 |
| 2002 | 20.4°C | 16.0°C | 11.7°C | 26.2°C | 4.2°C | 69 mm | 81% | 3.7 m/s | 2.9 |
| 2001 | 21.2°C | 16.9°C | 12.6°C | 27.7°C | 4.3°C | 55 mm | 79% | 3.6 m/s | 2.8 |
| 2000 | 18.7°C | 14.1°C | 9.5°C | 27.4°C | 3.6°C | 31 mm | 78% | 3.9 m/s | 2.6 |
| 1999 | 21.8°C | 16.5°C | 11.2°C | 27.8°C | 5.4°C | 16 mm | 69% | 3.9 m/s | 3.2 |
| 1998 | 20.7°C | 16.3°C | 11.9°C | 29.0°C | 1.8°C | 23 mm | 82% | 3.7 m/s | 2.8 |
| 1997 | 19.8°C | 15.1°C | 10.4°C | 27.4°C | 2.4°C | 18 mm | 73% | 3.6 m/s | 3.1 |
| 1996 | 22.4°C | 17.6°C | 12.8°C | 29.0°C | -0.9°C | 31 mm | 77% | 3.4 m/s | 2.8 |
| 1995 | 20.6°C | 16.7°C | 12.9°C | 27.8°C | 4.0°C | 35 mm | 81% | 3.4 m/s | 2.5 |
| 1994 | 21.9°C | 18.0°C | 14.1°C | 28.6°C | 5.6°C | 92 mm | 81% | 3.3 m/s | 2.2 |
| 1993 | 21.6°C | 17.2°C | 12.9°C | 29.5°C | 3.0°C | 95 mm | 75% | 3.8 m/s | 2.5 |
| 1992 | 22.1°C | 17.8°C | 13.4°C | 27.1°C | 6.3°C | 32 mm | 82% | 3.4 m/s | 2 |
| 1991 🌧️ | 21.1°C | 17.7°C | 14.3°C | 27.7°C | 6.7°C | 148 mm | 80% | 3.9 m/s | 2.1 |
| 1990 | 21.5°C | 16.7°C | 11.9°C | 29.4°C | -0.4°C | 9 mm | 71% | 3.7 m/s | 2.8 |
| 1989 ❄️ | 15.4°C | 10.5°C | 5.6°C | 26.0°C | -7.6°C | 31 mm | 71% | 3.8 m/s | 2.6 |
| 1988 | 21.9°C | 17.5°C | 13.1°C | 27.9°C | 6.7°C | 15 mm | 74% | 3.5 m/s | 2.9 |
| 1987 | 21.9°C | 17.4°C | 13.0°C | 29.0°C | 4.5°C | 17 mm | 77% | 3.5 m/s | 2.2 |
| 1986 | 18.6°C | 14.8°C | 10.9°C | 26.0°C | 4.1°C | 103 mm | 80% | 3.5 m/s | 2 |
| 1985 | 18.8°C | 14.3°C | 9.8°C | 25.5°C | -0.8°C | 26 mm | 79% | 3.4 m/s | 2.7 |
| 1984 | 23.5°C | 19.6°C | 15.7°C | 28.6°C | 3.9°C | 64 mm | 83% | 3.8 m/s | 2.6 |
| 1983 | 17.5°C | 12.5°C | 7.5°C | 29.9°C | -6.6°C | 14 mm | 72% | 4 m/s | — |
| 1982 | 21.1°C | 16.4°C | 11.8°C | 29.8°C | 4.2°C | 22 mm | 73% | 3.9 m/s | — |
| 1981 | 21.6°C | 17.0°C | 12.3°C | 28.1°C | 2.7°C | 18 mm | 75% | 3.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 21.1°C with lows near 12.1°C (mean 16.6°C), based on 45 years of NASA POWER data.
December averages 37 mm of rainfall in Corpus Christi, one of the drier months. The wettest on record was 148 mm in 1991.
The hottest December reached 30.3°C in 2008. The coldest dipped to -7.6°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2.9°C. Daytime highs moved from 20.5°C to 23.4°C and overnight lows from 11.4°C to 14.3°C over the same span.
December is one of the cooler months of the year in Corpus Christi and one of the drier months, so plan for around 21.1°C daytime highs and 12.1°C at night.
Not quite — December is the 2nd coolest month in Corpus Christi, averaging 16.6°C.
For December in Corpus Christi, pack light layers you can adjust through the day, with typical highs of 21.1°C and lows of 12.1°C.
Relative humidity in December averages 77% — quite humid.
Average wind speed in December is 3.6 m/s. The windiest December on record averaged 4.2 m/s (2008).
The wettest December on record was 1991 with 148 mm. On average, December sees 37 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Corpus Christi behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
