There were 18,590 infections reported over the past seven days, representing a 16 per cent dip from the previous week.
The number of people hospitalised with the virus also dropped by 14.5 per cent in the weekly figures, along with cases in aged care.
NSW Chief Medical Officer Kerry Chant said all indicators were pointing in the right direction.
"We may be approaching the bottom of this wave," she said.
As case numbers subside, the Therapeutic Goods Administration has issued a statement in defence of rapid antigen tests, rejecting a study published by researchers at James Cook University.
"The Therapeutic Goods Administration is aware of recent media reports that are critical of the performance of several COVID-19 rapid antigen tests on the Australian market," the regulator said.
"The TGA disagrees with these assertions.
"Consumers can be assured that if used correctly, RATs continue to be an important part of detecting and managing COVID-19 infections."
WEEKLY VIRUS FIGURES:
* NSW: 6567 cases, 88 deaths
* Queensland: 4414 cases, 35 deaths
* Victoria: 3056 cases, 70 deaths
* WA: 2146 cases, 11 deaths
* SA: 1286 cases, 14 deaths
* ACT: 420 cases, five deaths
* Tasmania: 321 cases, four deaths
* NT: 166 cases, no deaths.
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