State of emergency to stay

Western Australia will remain in a declared state of emergency until the "appropriate time" despite most public health measures being lifted on Friday.

Premier Mark McGowan told 6PR radio that some rules would be required into the future because the threat of COVID remained.

"For instance, we still have a restriction on cruise ships coming here until October," Mr McGowan said.

"You don't want a cruise ship with 3,000 or 5,000 positive people on board dumping them on the wharf.

"We'll unwind the state of emergency at the appropriate time."

He also said the vaccine mandates for about 70 per cent of workplaces would remain for the "foreseeable future".

"The third dose is high - about 80 per cent - but we want to get it higher," he said.

"We haven't set a threshold on that.

"I find if I set exact dates, or times, and then they change people go crazy."

Mr McGowan has been confronting his own COVID challenges in recent weeks.

One of his sons was hit with the virus and went through "four rough days but he's bounced back".

The premier also caught the virus, but he will emerge from isolation tomorrow and expects to be at a federal campaign launch on Sunday.

As the treasurer, Mr McGowan is now looking to next month's state budget.

He said cost of living pressures were front of mind and the government was conscious of people trying to manage power and water bills.