Houston weather in March
In March, Houston has an average high of 23 °C73 °F and an average low of 11 °C52 °F, with about 85 mm3.3 in of precipitation. It is the 8th warmest month of the year and ranks 11th for precipitation.
How March compares with other months
Compared with February, March is 4 °C7.2 °F warmer on average and wetter by 15 mm0.6 in. Compared with April, March is 3.9 °C7 °F cooler on average. Daylight lasts about 11.9 hours around the middle of the month. Average relative humidity is 80% and the average cloud amount 60%.
Is March a good time to visit Houston?
Yes — March is one of the most comfortable months to visit Houston by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in March
For Houston in March, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
March in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Houston | 2373 | 1152 | 853.3 |
| Pasadena | 2170 | 1356 | 893.5 |
| Beaumont | 2271 | 1253 | 953.8 |
| College Station | 2271 | 1049 | 873.4 |
| Austin | 2373 | 1049 | 732.9 |
| Waco | 2170 | 948 | 903.5 |
| Killeen | 2271 | 947 | 753.0 |
| Tyler | 1967 | 846 | 1164.6 |
| Corpus Christi | 2577 | 1457 | 501.9 |
Nearby places that are more than 1 °C1.8 °F warmer in March: Corpus Christi; cooler: College Station, Waco, Killeen and Tyler.
Other months in Houston
- January16 °C61 °F / 5 °C41 °F
- February19 °C65 °F / 7 °C45 °F
- March23 °C73 °F / 11 °C52 °F
- April26 °C80 °F / 15 °C59 °F
- May31 °C87 °F / 19 °C67 °F
- June34 °C92 °F / 23 °C73 °F
- July34 °C93 °F / 24 °C75 °F
- August35 °C94 °F / 24 °C75 °F
- September32 °C89 °F / 21 °C70 °F
- October28 °C82 °F / 16 °C60 °F
- November22 °C72 °F / 10 °C51 °F
- December18 °C64 °F / 6 °C43 °F
Frequently asked questions
How warm is Houston in March?
In March the average high in Houston is 23 °C (73 °F) and the average low is 11 °C (52 °F).
Does it rain a lot in Houston in March?
On average about 85 mm (3.3 in) of precipitation falls in March; it ranks 11th of the 12 months.
Is March the warmest month in Houston?
No. The warmest month in Houston is August, with an average high of 35 °C (94 °F). The coldest month is January, with an average low of 5 °C (41 °F).
How long is the day in Houston in March?
In the middle of March the day in Houston lasts about 11.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Houston in March?
The average relative humidity in March is about 80%. This is a long-term average for the whole day.
How cloudy is Houston in March?
On average about 60% of the sky is covered by cloud in March. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.