Mount Gambier Weather in December
Average highs run from 23°C on December 1 to 27°C on December 31, and lows from 10°C to 12°C. Normal precipitation for the month is 40 mm over about 7 wet days.
December day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 24°C
- Average low
- 10°C
- Precipitation
- 40 mm
- Record high
- 46°CDec 20, 2019
- Record low
- 1°CDec 1, 1994
- Daylight
- 14 h 34 min to 14 h 45 min
- Cloud cover
- 60%
- Humidity
- 66%
- Dew point
- 10°C
- Wind
- 13.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 23°C | 10°C | 37°C 1972 | 1°C 1994 | 26% |
| Dec 2 | 23°C | 10°C | 37°C 1999 | 2°C 1961 | 26% |
| Dec 3 | 21°C | 10°C | 38°C 1970 | 2°C 2020 | 26% |
| Dec 4 | 22°C | 10°C | 38°C 1950 | 3°C 2006 | 26% |
| Dec 5 | 23°C | 10°C | 39°C 1994 | 3°C 1980 | 26% |
| Dec 6 | 23°C | 11°C | 38°C 1994 | 2°C 1953 | 26% |
| Dec 7 | 23°C | 10°C | 35°C 2015 | 2°C 2006 | 25% |
| Dec 8 | 23°C | 10°C | 36°C 1955 | 2°C 1948 | 24% |
| Dec 9 | 23°C | 10°C | 42°C 2006 | 2°C 2022 | 24% |
| Dec 10 | 23°C | 10°C | 42°C 1980 | 3°C 1950 | 24% |
| Dec 11 | 24°C | 10°C | 41°C 1975 | 3°C 1996 | 24% |
| Dec 12 | 24°C | 11°C | 37°C 2012 | 4°C 2006 | 24% |
| Dec 13 | 24°C | 11°C | 38°C 2017 | 4°C 1960 | 24% |
| Dec 14 | 23°C | 11°C | 37°C 1972 | 3°C 1948 | 25% |
| Dec 15 | 24°C | 10°C | 36°C 1988 | 2°C 1962 | 25% |
| Dec 16 | 24°C | 10°C | 39°C 2003 | 3°C 2006 | 25% |
| Dec 17 | 24°C | 10°C | 37°C 2015 | 3°C 1966 | 23% |
| Dec 18 | 25°C | 11°C | 40°C 2019 | 4°C 1991 | 23% |
| Dec 19 | 25°C | 12°C | 43°C 2015 | 3°C 1958 | 23% |
| Dec 20 | 24°C | 11°C | 46°C 2019 | 4°C 2020 | 24% |
| Dec 21 | 24°C | 11°C | 40°C 1980 | 3°C 1968 | 23% |
| Dec 22 | 23°C | 11°C | 36°C 1976 | 4°C 2010 | 23% |
| Dec 23 | 24°C | 10°C | 40°C 2012 | 3°C 1956 | 22% |
| Dec 24 | 24°C | 10°C | 39°C 1946 | 4°C 1986 | 22% |
| Dec 25 | 24°C | 11°C | 39°C 1945 | 5°C 1953 | 21% |
| Dec 26 | 23°C | 10°C | 37°C 1970 | 4°C 1949 | 20% |
| Dec 27 | 24°C | 10°C | 40°C 2022 | 4°C 2014 | 19% |
| Dec 28 | 24°C | 11°C | 38°C 1979 | 3°C 1953 | 19% |
| Dec 29 | 25°C | 11°C | 40°C 1960 | 5°C 1953 | 18% |
| Dec 30 | 26°C | 11°C | 40°C 2019 | 3°C 2013 | 18% |
| Dec 31 | 27°C | 12°C | 43°C 2007 | 5°C 2013 | 18% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+10:30).
- December 1
- sunrise 5:39 AM, sunset 8:13 PM
- December 31
- sunrise 5:47 AM, sunset 8:32 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ASN00026021, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.