Mount Gambier Average Rainfall by Month

This page shows the average precipitation in each month of the year in Mount Gambier, South Australia. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Mount Gambier?

In Mount Gambier, August has the greatest precipitation of any month. On average, Mount Gambier gets 10.0 cm of precipitation in August.

However, July is the month with the greatest chance of precipitation. 73.9% of days in July will have at least some rain.

What's the Driest Month in Mount Gambier?

In Mount Gambier, February has the least precipitation of any month. On average, Mount Gambier gets 2.57 cm of precipitation in February.

February is also the month where rain is least common. 25.8% of days in February will have measurable rain.

Month	Precipitation	% Chance
January	3.12 cm	26.0
February	2.57 cm	25.8
March	3.48 cm	37.1
April	4.95 cm	50.6
May	7.28 cm	66.3
June	9.12 cm	70.9
July	9.84 cm	73.9
August	9.99 cm	71.3
September	7.60 cm	67.0
October	5.37 cm	51.1
November	4.60 cm	40.7
December	4.02 cm	37.1
Year	71.90 cm	51.6

Weather Station Details

Years	Station	Coordinates
1943–2023	Mount Gambier Aero	location
1861–1942	Mount Gambier Post Office	location