From May 18, regional travel restrictions will be eased from 13 borders to four and WA residents can dine-in at cafes, restaurants and pubs.
As phase two of WA's roadmap out of lockdown, residents of the Great Southern, South West, Wheatbelt and Perth-Peel will be able to travel within the four regions and non-work gatherings will allow up to 20 people to gather, both indoors and outdoors.
A return to work is encouraged for anyone who is healthy and not considered vulnerable.
Up to 30 people will be allowed to attend weddings and funerals if they are held outside, or 20 if they are held indoors.
Places of worship, community facilities and libraries will also be able to re-open, but only to 20 people at a time.
Outdoor and indoor fitness classes and training for non-contact sport will be able to take place for groups of up to 20 people, as long as limited equipment is shared. Public swimming pools can open under strict rules, limited to 20 patrons per pool.
Premier Mark McGowan said the government hoped to finalise plans with local governments to relax alfresco laws so cafes and other venues can increase the amount of patrons they can accommodate, while still maintaining social distancing guidelines, which means the 4sqm per person rule is applied.
Phase three of relaxations will take place about mid June, Mr McGowan said, which includes playgrounds opening and other further relaxations.
"Phase 3 will also likely to see public play grounds, outdoor gym equipment, skate parks and cinemas reopened. Phrase 4 will be assessed and finalised at a later stage," he said.
"Western Australia's hard border with the rest of Australia will remain in place. And will likely be the final restriction that we lift. Our hard borders and our isolation have worked to our advantage, and we must keep it that way."
Minister for Health Roger Cook said there were no new cases of COVID-19 overnight and stressed that social distancing must still be observed.
WA Police Commissioner Chris Dawson said police would continue to crack down hard on those people who "decide the COVID-19 emergency restrictions don't apply to them".