In June, San Antonio typically sees daytime highs of 33.5°C and overnight lows around 21.6°C. Compared to the annual average high of 26.8°C, June runs +6.6°C.
June in San Antonio averages a daytime high of 33.5°C and an overnight low of 21.6°C.
June runs +6.6°C compared to San Antonio's annual average high of 26.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 33.5°C and cooler evenings around 21.6°C.