Weather in Corpus Christi in March

Prime time. March is about as good as Corpus Christi gets. Highs average 25.5 °C, lows 14.4 °C, and rain falls on 6 days — nothing in the month is working against you.

March ranks 5 of 12 in Corpus Christi: past the worst of the year but short of February, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: 4 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest March day reached 36 °C and the coldest night fell to -1.1 °C, and the wettest single day dropped 49 mm — roughly 98% of the month's rain in one day.

March is moderately variable: 4 mm in the driest year against 158 mm in the wettest, around an average of 50 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 13 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How March sits in the year

The month is on the way up: 3.3 °C warmer than February, and April adds another 3.8 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in March

12 hours of daylight, gaining 0.8 hours across the month. That is between Corpus Christi's extremes of 13.9 and 10.4 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 19.8 °C in March — swimmable, but it takes a moment to commit. The sea peaks at 29.2 °C in August and bottoms out at 19.2 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Corpus Christi versus nearby

If Corpus Christi is one option among several, the nearby comparison is worth making. Laredo is close enough to be a coin toss — 3.3 °C warmer, 1 day less rain. San Antonio is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: March is effectively as good as it gets here — 3 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Corpus Christi

See all twelve months in Corpus Christi, or where else to go in March.