Geelong climate

Geelong Weather in December

NASA POWER reanalysis for the half-degree grid cell around Geelong, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 23°C on December 1 to 25°C on December 31, and lows from 12°C to 13°C. Normal precipitation for the month is 50 mm over about 6 wet days.

December day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Geelong, in °C, with the record for each date.01020304050151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
24°C
Average low
12°C
Precipitation
50 mm
Reanalysis high
42°CDec 20, 2019
Reanalysis low
7°CDec 5, 1993
Daylight
14 h 36 min to 14 h 47 min
Cloud cover
60%
Humidity
65%
Dew point
10°C
Wind
18.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Dec 123°C12°C33°C 19997°C 199429%
Dec 223°C12°C34°C 19998°C 201929%
Dec 323°C12°C31°C 19949°C 199328%
Dec 423°C12°C34°C 19948°C 199328%
Dec 523°C12°C36°C 19947°C 199327%
Dec 623°C12°C35°C 19947°C 201326%
Dec 723°C12°C36°C 20189°C 201925%
Dec 823°C12°C35°C 19997°C 199625%
Dec 923°C12°C39°C 20069°C 200924%
Dec 1023°C12°C41°C 20068°C 199624%
Dec 1124°C12°C38°C 19988°C 199524%
Dec 1224°C12°C37°C 19987°C 199523%
Dec 1324°C12°C35°C 20178°C 199524%
Dec 1424°C12°C33°C 20209°C 199624%
Dec 1524°C12°C34°C 19999°C 199224%
Dec 1624°C12°C36°C 20039°C 201023%
Dec 1724°C12°C38°C 20038°C 199322%
Dec 1824°C12°C39°C 20159°C 201623%
Dec 1924°C12°C40°C 20159°C 200823%
Dec 2024°C12°C42°C 20199°C 201024%
Dec 2124°C12°C37°C 20009°C 199824%
Dec 2224°C12°C32°C 19969°C 201023%
Dec 2324°C12°C36°C 20129°C 200724%
Dec 2425°C13°C35°C 19989°C 201024%
Dec 2525°C13°C35°C 19988°C 200624%
Dec 2625°C13°C34°C 19919°C 199323%
Dec 2725°C13°C37°C 20188°C 199623%
Dec 2825°C13°C36°C 20189°C 201022%
Dec 2925°C13°C39°C 20199°C 202022%
Dec 3025°C13°C41°C 20199°C 201322%
Dec 3125°C13°C41°C 20059°C 200023%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Geelong, in percent.01020301102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+11).

December 1
sunrise 5:54 AM, sunset 8:30 PM
December 31
sunrise 6:02 AM, sunset 8:49 PM

Every day of December: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.