The state government has announced West Australians aged between 30 and 49 will be able to access the Pfizer coronavirus vaccine from Thursday, June 10.

WA Premier Mark McGowan said the expansion was a move to "build momentum" for the uptake of the COVID-19 vaccine.

Those aged between 30 and 49 will receive the Pfizer vaccine at state-run clinics beginning Thursday, while bookings can be made from today.

The AstraZeneca vaccine will be administered to those aged over 50.

Mr McGowan said Aboriginal and Torres Strait Islander people aged 16 and over were also now eligible to receive an injection.

The state-run clinics include the hubs at Claremont, Kwinana, Redcliffe and Joondalup.

They will be scaled-up from next week to administer the vaccine to the younger cohort, with appointments available at Claremont Showgrounds for those aged 30-49 from Thursday.

The Joondalup and Kwinana clinics will administer both vaccine types from Monday, June 21, while the Redcliffe vaccination clinic will administer both vaccines from Monday June 28.

"With more doses now becoming available, Western Australia can get on and get vaccinated," Mr McGowan said.

"The time is now and this is your chance to roll up your sleeve, get the COVID-19 vaccine and protect yourselves, your family and the West Australian community."

The decision to expand the vaccine roll out follows a decision made by National Cabinet last week to vaccinate people over 40.

Vaccine appointments surge online

Starting next week, Pfizer vaccines will be available seven days a week at the Claremont Showgrounds clinic, while the AstraZeneca vaccine will be administered between Monday and Wednesday.

Mr McGowan said depending on the clinic, there would be between 700 and 2,000 appointments available per day, which could be made online.

Mr McGowan said by the end of June 30,000 appointments would be available each week.

Additional clinics were also scheduled to be set up as the take-up increases, with one planned for Bunbury in the South West.

In the minutes since the announcement was made, vaccines appointments were filling up online.

A statement on the website said it was experiencing a large volume of people registering.

It said once people were at the front of the online queue, they would have a further 10 minutes to proceed with registration.

Mr McGowan asked for people to be patient as the wait times at state clinics would increase with the expanded roll out.

He also called on the Commonwealth to deliver more vaccine doses to general practitioner clinics and to allow pharmacies to join the roll out to help speed-up the process.

Bunbury clinic announced

Health Minister Roger Cook said the first regional state-run vaccination clinic would be established at the Bunbury Homemaker Centre with the capacity for more than 600 appointments. 

From Thursday, both the Pfizer and AstraZeneca vaccines will be available, with AstraZeneca available on Mondays and Fridays and Pfizer available on Tuesdays, Wednesdays and Thursdays. 

He said this was in addition to the mobile vaccination clinics already running in regional WA.

"There are more than 75 mobile health clinics being operated by the WA Country Health Service," Mr Cook said. 

He said the mobile clinics were moving through the Goldfields, Great Southern, Kimberley, Mid West, Pilbara, South West and Wheatbelt regions. 

"What we're announcing today is a huge expansion of our vaccination program," Mr Cook said.