Australia records second-hottest September, 2.71C above average

Australia recorded its second-hottest September in 2026, averaging 2.71C above the 1961-1990 average, per Bureau of Meteorology data. Night-time minimums were the hottest for any September since national records began in 1910. Every state ranked in its top five warmest Septembers. Australia has not had a below-average September mean since 2004.