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Whyalla September Weather

Averages and records for weather in Whyalla, South Australia in the month of September.

Typical Whyalla September Weather 1991–2020
Average daily high	21.8 °C
Average daily low	8.3 °C
Average monthly precipitation	2.6 cm
Daily chance of precipitation	22.8%

Whyalla September Weather Records 1906–2023
Highest temperature	38.0 °C	September 27, 2008
Lowest temperature	-0.7 °C	September 7, 1995
Highest daily low	23.0 °C	September 25, 1965
Lowest daily high	11.9 °C	September 13, 1969
Hottest average high temperature	26.0 °C	2013
Coldest average high temperature	17.0 °C	1969
Most daily precipitation	6.2 cm	September 27, 1979
Most monthly precipitation	11.3 cm	1910

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
September 1	20.3	6.9	33.9	0.5
September 2	20.4	7.1	35.1	0.6
September 3	20.5	7.1	32.2	1.4
September 4	20.6	7.3	34.9	0.6
September 5	20.7	7.4	34.0	0.9
September 6	20.8	7.4	31.6	-0.3
September 7	21.0	7.5	31.8	-0.7
September 8	21.1	7.6	34.5	2.3
September 9	21.2	7.8	33.8	1.4
September 10	21.3	7.9	33.8	2.1
September 11	21.3	8.0	34.5	0.7
September 12	21.4	8.1	35.8	2.1
September 13	21.6	8.1	32.5	0.6
September 14	21.7	8.2	32.7	0.4
September 15	21.7	8.3	33.5	1.0
September 16	21.8	8.4	36.4	2.5
September 17	21.8	8.4	36.9	1.6
September 18	22.0	8.5	33.9	2.0
September 19	22.1	8.6	31.7	1.7
September 20	22.3	8.7	35.0	2.0
September 21	22.4	8.9	33.4	2.6
September 22	22.5	9.0	35.3	2.6
September 23	22.5	9.0	32.8	3.3
September 24	22.6	9.1	36.3	2.4
September 25	22.7	9.1	38.0	2.2
September 26	22.8	9.2	35.4	3.3
September 27	22.8	9.3	38.0	1.9
September 28	22.9	9.4	35.5	0.6
September 29	23.0	9.5	35.2	2.9
September 30	23.0	9.5	37.8	2.1

Weather Station Details

Years	Station	Coordinates
1983–2023	Whyalla Aero	location
1906–1982	Whyalla (Norrie)	location