Weather in Houston in March

Prime time. March is about as good as Houston gets. Highs average 22.9 °C, lows 11.1 °C, and rain falls on 8 days — nothing in the month is working against you.

March is the highest-scoring month of the twelve. The nearest rival is April, and the month at the other end of the year is August.

Rain on 8 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest March day reached 32.2 °C and the coldest night fell to -4.9 °C, and the wettest single day dropped 60 mm — roughly 71% of the month's rain in one day.

March is moderately variable: 13 mm in the driest year against 187 mm in the wettest, around an average of 85 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 7.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 80%, high enough to notice on the warm days without dominating them.

How March sits in the year

The month is on the way up: 4.1 °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

11.9 hours of daylight, gaining 0.9 hours across the month. That is between Houston's extremes of 14 and 10.2 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 30 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

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 Houston versus nearby

If Houston is one option among several, the nearby comparison is worth making. Corpus Christi is close enough to be a coin toss — 2.6 °C warmer, 2 days less rain. San Antonio is close enough to be a coin toss — within a degree on temperature, 1 day less rain.

So: March is the answer for Houston. If it is booked out or priced out, April is the next best thing at 0 points behind, and August is the month to keep off the shortlist.

Every month in Houston

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