Galveston Average Temperature by Month

This page shows the average temperature in each month of the year in Galveston, Texas. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Galveston?
In Galveston, Texas, the warmest month is August, with an average daily high temperature of 90.8 °F and an average low of 80.1 °F.
What's the Coldest Month in Galveston?
In Galveston, Texas, the coolest month is January, with an average daily high temperature of 62.1 °F and an average low of 49.2 °F.
Month Avg. High Avg. Low
January 62.1 °F 49.2 °F
February 65.0 °F 52.6 °F
March 70.4 °F 58.7 °F
April 76.5 °F 65.4 °F
May 82.6 °F 72.6 °F
June 88.1 °F 78.2 °F
July 89.8 °F 80.1 °F
August 90.8 °F 80.1 °F
September 87.6 °F 76.4 °F
October 80.7 °F 68.7 °F
November 71.3 °F 58.6 °F
December 64.5 °F 51.6 °F
Year 77.5 °F 66.0 °F
Weather Station Details
Years Station Coordinates
1999–2024 Galveston Scholes Field location
1897–1998 Galveston location