San Antonio climate

San Antonio Weather in March

NOAA 1991-2020 normals for San Antonio Incarnate Word, 5.5 km from San Antonio

Average highs run from 70°F on March 1 to 77°F on March 31, and lows from 47°F to 55°F. Normal precipitation for the month is 2.38 in over about 9 wet days.

March day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at San Antonio, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
74°F
Average low
51°F
Precipitation
2.38 in
Record high
97°FMar 14, 2025
Record low
21°FMar 4, 2002
Chance of a freeze
40%
Days of 90°F or more
0.5
Daylight
11 h 35 min to 12 h 27 min
Cloud cover
62%
Humidity
69%
Dew point
50°F
Wind
10.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Mar 170°F47°F91°F 202331°F 201330%0%
Mar 271°F47°F92°F 199933°F 201430%0%
Mar 371°F48°F89°F 202628°F 200229%0%
Mar 471°F48°F89°F 202621°F 200229%0%
Mar 571°F48°F91°F 202427°F 200229%0%
Mar 671°F48°F89°F 202632°F 201529%0%
Mar 772°F49°F88°F 200437°F 200829%0%
Mar 872°F49°F93°F 200631°F 200829%0%
Mar 972°F49°F90°F 201943°F 200829%0%
Mar 1072°F50°F94°F 200640°F 202229%0%
Mar 1173°F50°F92°F 202337°F 201329%0%
Mar 1273°F50°F93°F 202531°F 202229%0%
Mar 1373°F50°F93°F 202531°F 202228%0%
Mar 1473°F51°F97°F 202541°F 199928%0%
Mar 1574°F51°F97°F 202634°F 199928%0%
Mar 1674°F51°F89°F 201841°F 199928%0%
Mar 1774°F51°F90°F 201834°F 200528%0%
Mar 1874°F52°F96°F 201339°F 200528%0%
Mar 1975°F52°F87°F 201843°F 200328%0%
Mar 2075°F52°F91°F 202636°F 200128%0%
Mar 2175°F52°F94°F 202234°F 201027%0%
Mar 2275°F53°F93°F 202635°F 201027%0%
Mar 2376°F53°F91°F 202539°F 200227%0%
Mar 2476°F53°F90°F 202336°F 200627%0%
Mar 2576°F53°F93°F 202535°F 200626%0%
Mar 2676°F54°F96°F 202240°F 201326%0%
Mar 2777°F54°F92°F 202238°F 201326%0%
Mar 2877°F54°F95°F 201438°F 200526%0%
Mar 2977°F54°F93°F 200037°F 200925%0%
Mar 3077°F54°F89°F 200533°F 200325%0%
Mar 3177°F55°F90°F 201237°F 200325%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at San Antonio, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

March 1
sunrise 6:59 AM, sunset 6:34 PM
March 31
sunrise 7:25 AM, sunset 7:52 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417947 (San Antonio Incarnate Word), public domain. Records: NOAA GHCN-Daily, station USW00012970, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.