San Antonio (TX)
April
Weather in San Antonio, Texas for April 2026
Your guide to San Antonio weather in April - trends and predictions
Until now, April 2026 in San Antonio is slightly cooler than the historical average by -1.3 °F.
The forecast for the next days in San Antonio predicts a temperature of 31.6 °F, which is cooler than the historical average.
In general, the average temperature in San Antonio at the beginning of April is 26.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.7 °F by the end of April.
San Antonio experiences heavy rainfall in April, with over 20 rainy days and an average total precipitation 110.9 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
27°/16°
Temperatures
24 km/h
Avg max wind
69 %
Avg humidity
San Antonio Weather April
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Temperatures trend during April in San Antonio
See the weather trend as well as the moving average line
April weather in San Antonio day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Cloudy | 29° /17° | 0.7 mm | 5 | |
| Apr. 2 |  Patchy rain possible | 29° /18° | 0.1 mm | 6 | |
| Apr. 3 | Patchy rain possible | 30° /17° | 0 mm | 6 | |
| Apr. 4 |  Overcast | 31° /17° | 4.5 mm | 6 | |
| Apr. 5 |  Moderate or heavy rain shower | 23° /13° | 10.6 mm | 5 | |
| Apr. 6 | Moderate or heavy rain shower | 19° /11° | 16.3 mm | 4 | |
| Apr. 7 | Moderate or heavy rain shower | 22° /11° | 3.8 mm | 6 | |
| Apr. 8 | Overcast | 24° /13° | 1.1 mm | 6 | |
| Apr. 9 | Patchy rain possible | 27° /15° | 5.6 mm | 6 | |
| Apr. 10 |  Sunny | 28° /15° | 1.3 mm | 6 | |
| Apr. 11 | Overcast | 27° /15° | 0 mm | 6 | |
| Apr. 12 |  Partly cloudy | 28° /15° | 0 mm | 6 | |
| Apr. 13 |  Mist | 30° /16° | 0 mm | 6 | |
| Apr. 14 | Overcast | 28° /16° | 0.3 mm | 6 | |
| Apr. 15 | Overcast | 28° /18° | 1.1 mm | 5 | |
| Apr. 16 | Sunny | 28° /17° | 0 mm | 6 | |
| Apr. 17 | Patchy rain possible | 29° /17° | 0 mm | 6 | |
| Apr. 18 | Moderate or heavy rain shower | 29° /17° | 3.8 mm | 6 | |
| Apr. 19 | Light rain shower | 24° /17° | 1.8 mm | 5 | |
| Apr. 20 | Moderate or heavy rain shower | 23° /17° | 11.3 mm | 5 | |
| Apr. 21 | Overcast | 24° /16° | 3.3 mm | 5 | |
| Apr. 22 | Overcast | 26° /16° | 1.6 mm | 5 | |
| Apr. 23 | Moderate or heavy rain shower | 25° /16° | 11.6 mm | 5 | |
| Apr. 24 | Moderate or heavy rain shower | 27° /18° | 2.4 mm | 6 | |
| Apr. 25 | Moderate rain at times | 30° /19° | 1.9 mm | 7 | |
| Apr. 26 | Moderate or heavy rain shower | 30° /19° | 2.4 mm | 7 | |
| Apr. 27 | Patchy rain possible | 36° /24° | 0.5 mm | 10.6 | |
| Apr. 28 | Partly cloudy | 35° /23° | 0.1 mm | 10.3 | |
| Apr. 29 |  Heavy rain | 34° /20° | 35.1 mm | 11.2 | |
| Apr. 30 |  Moderate rain | 30° /20° | 5.5 mm | 10.3 | |
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Important Notice
Our weather forecast for San Antonio in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Antonio forecast closer to your planned date for the most up-to-date weather information.
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San Antonio in April - FAQ
What are the expected maximum and minimum temperatures in San Antonio during April?
During April, expect a variety of temperatures with highs around 27° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Antonio during April?
Significant rainfall exceeding 110.9 mm is expected in San Antonio during April, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Antonio during April?
The average wind speed in San Antonio during April is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in San Antonio
Explore the daily rainfall trends and prepare for San Antonios April weather 💧
Typically, San Antonio has 21 rainy days in April with a total of 110.9 mm of rainfall.
UV exposure in San Antonio during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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