Galveston Weather in October

The climate in Galveston during October can be summarized as warm, humid and a little damp.

October is in the fall / autumn in Galveston and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 19°C (66°F) is normal.

On average October is the 4th driest month of the year in Galveston with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Galveston in October 2025.