Prime Minister Scott Morrison tonight outlined a tighter set of restriction to combat the ongoing Coronavirus threat.

From Wednesday night the lockdown will include shopping centre food courts, real estate auctions and open homes, beauty salons and a range of other non-essential services.

Galleries, museums, libraries, swimming pools and community facilities will also have to close.

Weddings can continue, however only the bridal couple, a celebrant and their witnesses can attend.

Funerals can only proceed with a maximum of 10 people observing the four square metre social distancing rule.

Mr Morrison said the medical advice was still that schools should remain open, particularly for children of emergency workers, despite Victoria calling the school holidays early.

He also urged Australians to limit the number of guests people had in their homes, urging them not to hold barbecues, birthday parties and family gatherings.