Millions in New South Wales might be banned for travelling interstate for MONTHS as Gladys Berejiklian drops a worrying hint

NSW won't take interstate border closures into account when deciding whether to ease Greater Sydney's Covid lockdown settings at the end of August, the premier says.

Instead, the government will focus on the 'health and safety and wellbeing' of NSW residents - acknowledging states with a preference for 'Covid zero' will keep their borders shut regardless.

The remarks by Gladys Berejiklian suggest 5.4 million Sydneysiders won't be able to travel interstate for months.

NSW recorded 283 local Covid cases in the 24 hours to 8pm on Sunday, 106 of which were in the community while infectious.

Gladys Berejiklian has indicated that Sydneysiders are unlikely to be holidaying interstate for months as health authorities battle to control the highly infectious Indian Delta outbreak

Greater Sydney's lockdown is scheduled to be revised at the end of August, but the premier said border closures will not factor into her decision. Pictured: Pedestrians walk along an empty street in Penrith on Monday 

An unvaccinated northern Sydney woman in her 90s has also died, taking the death toll from the current outbreak to at least 29.

Just over 80 per cent of the NSW population, about 6,571,800 residents, have now been placed into lockdown.

Byron Bay and surrounding local government areas in northern NSW entered a seven-day lockdown from 6pm on Monday as authorities battle to contain the Delta strain creeping into the state's regions.

The New England regional city of Tamworth joined the Hunter region and Armidale for a seven-day lockdown after an infected young woman visited the area from Newcastle.

It follows Greater Sydney and surrounding regions extended lockdown to at least August 28.

Ms Berejiklian has set a goal of six million COVID-19 vaccinations by the end of August in order to consider easing lockdown settings. About 4.5 million jabs have been administered so far.

The Covid outbreak has spread into regional NSW, plunging the Hunter Region, Armidale, Tamworth, and Byron Bay into lockdown

Despite saying last week that 'Covid zero' remains the goal in NSW, the premier on Monday admitted lockdown restrictions could ease from August 29 depending on infections in the community and hitting the six million jab target.

However, pre-pandemic freedoms could not be countenanced until vaccination rates of 70 and 80 per cent are reached.

Ms Berejiklian acknowledged this meant residents of Sydney and surrounds could be banned from interstate travel for the long term, given the tendency of other states to close borders.

She argued locked-down residents would prefer more freedom in their day-to-day lives - protected by vaccination - sooner.

'I'm sure if you asked the majority of people in this state whether look forward to more freedoms than we have now, I think the answer would be yes,' Ms Berejiklian told reporters.

'At the moment now nobody from NSW can travel anywhere anyway. So isn't it better for our citizens, for our health and safety and wellbeing, for to have those freedoms?

'I remember other states closing borders to NSW when we had very low numbers of cases that weren't even Delta ... I think it's pretty predictable what the other states will do.'

Ms Berejiklian hopes to have six million Covid vaccines in arms by the end of the month Pictured: People at Sydney's Olympic Park Vaccination hub  

Residents of Greater Sydney and surrounds can only visit regional NSW for essential activity, and cannot freely enter any other Australian state or territory.

The director of the Royal Prince Alfred hospital's intensive care unit, Richard Totaro, said vaccination made Covid a 'much more mild disease' that would keep people out of hospital.

Covid-19 patients who ended up in intensive care clog up the system for up to five weeks, he said.

There are 349 coronavirus patients in hospital, 67 of them in intensive care and 29 are ventilated.

'The remarkable thing about this disease in people who are not vaccinated is just how progressive and relentless the deterioration can be and how incredibly sick patients become,' Dr Totaro said.

Meanwhile, thousands of Year 12 students from eight council areas in western and southwestern Sydney will this week get their Pfizer jab.

NSW Health also vaccinated almost 2000 supermarket and food distribution workers with AstraZeneca on a day it dubbed 'Super Sunday' at the vaccination hub at Olympic Park.

Elsewhere, authorities have warned Byron Bay residents to be on alert after a Covid-positive Sydney person visited the area last month.