In October, Galveston typically sees daytime highs of 25.9°C and overnight lows around 18.0°C. Compared to the annual average high of 24.1°C, October runs +1.8°C.
October in Galveston averages a daytime high of 25.9°C and an overnight low of 18.0°C.
October runs +1.8°C compared to Galveston's annual average high of 24.1°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 18.0°C.