So when WILL Sydney's lockdown end? Even under a best case scenario restrictions will last until August, experts warn - and a return to normal could take far longer Greater Sydney's lockdown is likely to last at least another month to quash Delta variant, disease experts say NSW reported 112 new cases on Monday. 34 of them infectious in community - the critical number Premier Gladys Berejiklian said that it will be 'almost impossible' for lockdown to lift on July 9 as planned Disease modeller Professor Emma McBryde believes the shutdown will last through the beginning of August