San Antonio weather in April
Temperature, rain and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Excellent
Best time to visit: October – April
What is the weather like in San Antonio in April?
In April, San Antonio is warm: daytime highs average 27 °C, and nights cool down to about 16 °C. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 68 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, April is an excellent month for a holiday in San Antonio.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 12 h 51 min07:09 – 20:00
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 9 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 6 days30 °C or moreAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %71 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- A jumper for the evenings
- Rain jacket or umbrella
San Antonio in April: quick answers
Is San Antonio hot in April?
Warm rather than hot: in April, daytime highs in San Antonio average 27 °C and nights cool to about 16 °C. On about 6 days the thermometer climbs to 30 °C or more.
Does it rain much in San Antonio in April?
Rain falls on about 8 days, adding up to 68 mm.
San Antonio month by month
The whole year in San AntonioAll destinations: USAWhere to go in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences