Kalgoorlie Weather in December

1991-2020 means of the daily record at Kalgoorlie-Boulder Airport (GHCN ASN00012038), 5 km from Kalgoorlie

Average highs run from 30°C on December 1 to 34°C on December 31, and lows from 15°C to 19°C. Normal precipitation for the month is 19 mm over about 4 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: 32°C
Average low: 17°C
Precipitation: 19 mm
Record high: 45°CDec 31, 1972
Record low: 6°CDec 2, 1973
Daylight: 13 h 59 min to 14 h 06 min
Cloud cover: 37%
Humidity: 36%
Dew point: 7°C
Wind: 19.8 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	30°C	15°C	42°C 1997	9°C 1966	13%
Dec 2	30°C	14°C	43°C 1995	6°C 1973	12%
Dec 3	31°C	15°C	42°C 1990	8°C 1978	12%
Dec 4	32°C	16°C	40°C 2019	8°C 1959	12%
Dec 5	31°C	16°C	40°C 2019	9°C 1990	12%
Dec 6	31°C	16°C	42°C 2019	8°C 1990	13%
Dec 7	30°C	16°C	42°C 1980	8°C 1953	13%
Dec 8	30°C	15°C	42°C 1977	10°C 1997	13%
Dec 9	30°C	16°C	42°C 2000	10°C 1959	14%
Dec 10	31°C	15°C	42°C 1970	9°C 1986	14%
Dec 11	31°C	16°C	44°C 1970	9°C 1966	15%
Dec 12	32°C	17°C	43°C 1972	9°C 1966	15%
Dec 13	31°C	17°C	43°C 2010	10°C 1951	15%
Dec 14	31°C	17°C	43°C 1988	10°C 1968	14%
Dec 15	33°C	17°C	42°C 2019	9°C 1943	13%
Dec 16	32°C	18°C	43°C 2004	8°C 1943	13%
Dec 17	32°C	18°C	43°C 2019	10°C 1952	14%
Dec 18	34°C	18°C	44°C 2019	10°C 1951	14%
Dec 19	33°C	18°C	44°C 2005	12°C 1955	14%
Dec 20	32°C	17°C	43°C 1976	9°C 1950	13%
Dec 21	32°C	17°C	42°C 2009	10°C 1964	12%
Dec 22	33°C	17°C	43°C 1986	10°C 2000	12%
Dec 23	32°C	18°C	42°C 1986	11°C 1943	12%
Dec 24	33°C	17°C	43°C 2010	8°C 1964	12%
Dec 25	33°C	17°C	43°C 1980	11°C 1964	11%
Dec 26	34°C	18°C	43°C 2020	11°C 1971	11%
Dec 27	35°C	19°C	43°C 1989	12°C 1974	11%
Dec 28	35°C	19°C	42°C 2010	11°C 1957	11%
Dec 29	35°C	19°C	43°C 1976	8°C 1957	11%
Dec 30	35°C	19°C	43°C 2013	9°C 1957	11%
Dec 31	34°C	19°C	45°C 1972	10°C 2002	11%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 4:44 AM, sunset 6:43 PM
December 31: sunrise 4:54 AM, sunset 7:00 PM

Every day of December: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station ASN00012038, 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.