Sydney records hottest June since 1859 as expert warns new high a ‘signature’ of global warming

Bureau of Meteorology says city's mean temperature reached 16.1C, surpassing the previous record of 15.7C set in 1991

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Sydney has officially experienced its hottest June since records began, after a winter month of spring-like warmth.

While early weather data suggested the month was merely among the warmest, the Bureau of Meteorology confirmed on Friday that June 2026 broke the all-time mean temperature record at Observatory Hill, where tracking first began in 1859.