Geraldton Weather in December

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

Average highs run from 22°C on December 1 to 25°C on December 31, and lows from 19°C to 21°C. Normal precipitation for the month is 6 mm over about 3 wet days.

December day by day

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

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

December at a glance

Average high: 24°C
Average low: 20°C
Precipitation: 6 mm
Reanalysis high: 34°CDec 31, 1996
Reanalysis low: 16°CDec 1, 2020
Daylight: 13 h 50 min to 13 h 57 min
Cloud cover: 38%
Humidity: 74%
Dew point: 17°C
Wind: 29.2 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	Reanalysis high	Reanalysis low	Chance wet
Dec 1	22°C	19°C	28°C 2011	16°C 2020	6%
Dec 2	22°C	19°C	31°C 2019	16°C 2002	6%
Dec 3	23°C	19°C	30°C 2011	18°C 2002	6%
Dec 4	23°C	20°C	28°C 2009	18°C 2001	6%
Dec 5	23°C	20°C	28°C 2013	18°C 2001	7%
Dec 6	23°C	20°C	26°C 1992	17°C 2007	7%
Dec 7	23°C	20°C	29°C 2004	17°C 2007	7%
Dec 8	23°C	20°C	33°C 2004	18°C 2003	7%
Dec 9	23°C	20°C	30°C 1997	17°C 2003	7%
Dec 10	23°C	20°C	29°C 2002	18°C 2005	7%
Dec 11	23°C	20°C	34°C 2002	18°C 2005	7%
Dec 12	23°C	20°C	32°C 2019	18°C 2005	6%
Dec 13	23°C	20°C	34°C 2019	18°C 2005	6%
Dec 14	24°C	20°C	33°C 2019	18°C 2005	6%
Dec 15	24°C	20°C	29°C 2016	18°C 2003	6%
Dec 16	24°C	20°C	33°C 1993	18°C 2005	6%
Dec 17	24°C	20°C	28°C 1996	18°C 2014	6%
Dec 18	24°C	20°C	30°C 2009	19°C 2014	5%
Dec 19	24°C	21°C	31°C 2004	18°C 2015	5%
Dec 20	24°C	21°C	28°C 2016	17°C 1991	4%
Dec 21	24°C	21°C	32°C 2018	18°C 2000	4%
Dec 22	24°C	21°C	33°C 2020	18°C 2000	4%
Dec 23	24°C	21°C	32°C 2020	18°C 2005	3%
Dec 24	24°C	21°C	30°C 1994	17°C 2005	3%
Dec 25	24°C	21°C	33°C 2007	19°C 2015	3%
Dec 26	24°C	21°C	33°C 2000	19°C 2005	3%
Dec 27	24°C	21°C	33°C 2015	19°C 2016	3%
Dec 28	24°C	21°C	33°C 2015	18°C 2005	3%
Dec 29	25°C	21°C	31°C 1994	18°C 2016	3%
Dec 30	25°C	21°C	28°C 1999	18°C 2005	3%
Dec 31	25°C	21°C	34°C 1996	18°C 2005	2%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+8).

December 1: sunrise 5:16 AM, sunset 7:06 PM
December 31: sunrise 5:26 AM, sunset 7:23 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.