Mount Gambier Average Temperature by Month

This page shows the average temperature in each month of the year in Mount Gambier, South Australia. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Mount Gambier?
In Mount Gambier, South Australia, the warmest month is February, with an average daily high temperature of 26.0 °C and an average low of 12.3 °C.
What's the Coldest Month in Mount Gambier?
In Mount Gambier, South Australia, the coolest month is July, with an average daily high temperature of 13.5 °C and an average low of 5.6 °C.
Month Avg. High Avg. Low
January 25.9 °C 12.0 °C
February 26.0 °C 12.3 °C
March 23.6 °C 11.0 °C
April 20.0 °C 9.0 °C
May 16.4 °C 7.7 °C
June 14.1 °C 6.1 °C
July 13.5 °C 5.6 °C
August 14.5 °C 5.9 °C
September 16.2 °C 6.7 °C
October 18.7 °C 7.5 °C
November 21.4 °C 9.0 °C
December 23.7 °C 10.4 °C
Year 19.5 °C 8.6 °C
Weather Station Details
Years Station Coordinates
1943–2023 Mount Gambier Aero location
1861–1942 Mount Gambier Post Office location