Mount Gambier December Weather

Averages and records for weather in Mount Gambier, South Australia in the month of December.
Typical Mount Gambier December Weather
1991–2020
Average daily high 23.7 °C
Average daily low 10.4 °C
Average monthly precipitation 4.0 cm
Daily chance of precipitation 37.1%
Mount Gambier December Weather Records
1861–2023
Highest temperature 45.9 °C December 20, 2019
Lowest temperature 1.2 °C December 1, 1994
Highest daily low 23.3 °C December 12, 1998
Lowest daily high 12.7 °C December 4, 1927
Hottest average high temperature 28.7 °C 2015
Coldest average high temperature 18.7 °C 1964
Most daily precipitation 7.9 cm December 13, 2008
Most monthly precipitation 27.6 cm 1861
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°C) Record (°C)
High Low High Low
December 1 22.8 9.9 37.1 1.2
December 2 22.9 10.0 36.7 2.2
December 3 22.9 10.0 38.4 2.4
December 4 22.9 10.0 37.6 3.1
December 5 23.0 10.0 38.8 2.7
December 6 23.1 10.1 38.1 1.7
December 7 23.2 10.2 37.9 2.1
December 8 23.2 10.2 35.9 2.2
December 9 23.3 10.3 42.4 2.1
December 10 23.3 10.3 42.0 3.4
December 11 23.3 10.3 41.1 2.8
December 12 23.3 10.3 39.0 4.0
December 13 23.4 10.3 39.4 3.5
December 14 23.4 10.3 37.2 3.0
December 15 23.5 10.4 35.8 2.2
December 16 23.6 10.4 39.4 3.1
December 17 23.7 10.5 37.3 2.8
December 18 23.8 10.6 39.5 4.4
December 19 24.0 10.6 42.8 2.5
December 20 24.1 10.7 45.9 3.9
December 21 24.2 10.7 40.4 3.2
December 22 24.2 10.8 38.9 4.0
December 23 24.3 10.8 40.8 3.4
December 24 24.3 10.9 40.0 4.4
December 25 24.4 10.9 39.2 4.6
December 26 24.5 10.9 40.7 3.5
December 27 24.6 11.0 40.3 3.7
December 28 24.7 11.0 38.4 2.9
December 29 24.9 11.1 39.6 4.7
December 30 25.0 11.2 39.8 3.0
December 31 25.1 11.3 43.3 4.1
Weather Station Details
Years Station Coordinates
1943–2023 Mount Gambier Aero location
1861–1942 Mount Gambier Post Office location