In August, Galveston typically sees daytime highs of 31.1°C and overnight lows around 25.2°C. Compared to the annual average high of 24.1°C, August runs +7.1°C.
August in Galveston averages a daytime high of 31.1°C and an overnight low of 25.2°C.
August runs +7.1°C compared to Galveston's annual average high of 24.1°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 31.1°C and cooler evenings around 25.2°C.