Indoor and outdoor gatherings of up to 10 people will be allowed in Western Australia following the relaxation of some of the state's current Coronavirus-related resitrctions.

The announcement was made today by Premier Mark McGowan and Health Minister Roger Cook.

"Our State has seen remarkable results in the fight against Covid-19," tweeted McGowan after a week where WA saw a huge drop in the number of new Covid-19 cases. "While that fight will continue for some time yet, those results mean we can now cautiously adjust some of the most extreme of those restrictions."

Under the revised restrictions, a maximum of 10 people will be allowed at gatherings such as weddings, funerals, home opens and display village inspections.

While groups of up to 10 will be allowed to participate in outdoor personal training, no training equipment is to be shared. Public playgrounds, skate parks and outdoor gym equipment, however, will remain closed.

Restaurants, cafés, food vans, food courts and road houses will remain restricted to takeaway and home delivery.

"The containment of this disease has been possible through a range of measures, heightened social distancing, enhanced case identification, contact tracing, enforcement of isolation and quarantine and State border and regional border closures," says minister Cook.

"We're now able to make these adjustments to our restrictions based on the best of medical advice, local epidemiology and on-ground surveillance of any community transmission."

These new rules go into effect on Monday April 27.