Whyalla Average Temperature by Month

This page shows the average temperature in each month of the year in Whyalla, South Australia. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Whyalla?
In Whyalla, South Australia, the warmest month is January, with an average daily high temperature of 30.6 °C and an average low of 18.2 °C.
What's the Coldest Month in Whyalla?
In Whyalla, South Australia, the coolest month is July, with an average daily high temperature of 17.3 °C and an average low of 5.4 °C.
Month Avg. High Avg. Low
January 30.6 °C 18.2 °C
February 29.9 °C 18.0 °C
March 27.3 °C 15.5 °C
April 24.3 °C 12.0 °C
May 20.4 °C 8.8 °C
June 17.2 °C 6.4 °C
July 17.3 °C 5.4 °C
August 18.6 °C 5.9 °C
September 21.8 °C 8.3 °C
October 24.3 °C 11.2 °C
November 26.8 °C 14.2 °C
December 28.4 °C 16.1 °C
Year 23.9 °C 11.7 °C
Weather Station Details
Years Station Coordinates
1983–2023 Whyalla Aero location
1906–1982 Whyalla (Norrie) location
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