In June, Galveston typically sees daytime highs of 29.9°C and overnight lows around 24.3°C. Compared to the annual average high of 24.1°C, June runs +5.8°C.
June in Galveston averages a daytime high of 29.9°C and an overnight low of 24.3°C.
June runs +5.8°C compared to Galveston's annual average high of 24.1°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.9°C and cooler evenings around 24.3°C.