From 6am AWST on Monday, the two-square-meter density rule will return for many outdoor venues, including casinos, pubs, clubs, restaurants, hairdressers and gyms.
There will also be a 75 per cent capacity limit at cinemas, theaters and stadiums. Nightclub crowds will be capped at 500.
Residents will only be able to have 30 people inside their home but 200 will be permitted at private outdoor gatherings.
Hospitals and aged care homes will still allow visitors but each resident may only receive four people per day.
Masks will be mandatory indoors across the state.