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Climate · San Antonio

San Antonio in April

Warm and damp, as the days lengthen.

Typical weather, averaged over 30 years

April in San Antonio is warm: highs near 83°F, lows near 60°F. Rain falls on about two days a week, and the days lengthen by 36 minutes from the first week to the last.April in San Antonio is warm: highs near 28°C, lows near 16°C. Rain falls on about two days a week, and the days lengthen by 36 minutes from the first week to the last.

High
83°F28°Caverage
Low
60°F16°Caverage
Wet days
2a week · 33% of days
Daylight
12h 51mon average

Is April a good time to visit San Antonio?

A good month, just outside San Antonio's best months, which run in two parts: March, or November.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How April sits in the year

week by week

Temperature

Highs near 83°F in April, against 66°F to 99°F through the year.Highs near 28°C in April, against 19°C to 37°C through the year.

Chance of a wet day

33% of days in April, against 22% to 40% through the year.

Cloud cover

42% cover in April, against 31% to 50% through the year.

Daylight

12h 51m in April, against 10h 17m to 14h 00m through the year.

Week by week, lightly smoothed, with April shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. March77°25°low 53°low 12°2 wet days a weekRain on about two days a week.
  2. April83°28°low 60°low 16°2 wet days a weekRain on about two days a week.
  3. May89°32°low 67°low 19°3 wet days a weekRain on about three days a week.

Where San Antonio sits, in April

America/Chicago
this place
typical high in April 40°F4°C95°F35°C
Sunrise, mid-April
7:09 AMsets 8:01 PM
Above the sea
250 mlow-lying
Latitude
29.5°Nnorthern hemisphere
Nearest of ours
Houston322 km east

The land around San Antonio, shaded by its typical high in April, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in April

high · low · wet days
See April on the planning mapThe whole year in San Antonio

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest San Antonio. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.