In April, San Antonio typically sees daytime highs of 27.1°C and overnight lows around 14.6°C. Compared to the annual average high of 26.8°C, April runs +0.3°C.
April in San Antonio averages a daytime high of 27.1°C and an overnight low of 14.6°C.
April runs +0.3°C compared to San Antonio's annual average high of 26.8°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 27.1°C and cooler evenings around 14.6°C.