The move impacts all parishes in Los Angeles, Ventura and Santa Barbara counties.
However, masses and other liturgical services, such as funerals and weddings, may be done outdoors on parish grounds.
RELATED: Gov. Newsom orders major reopening rollback in attempt to control rampant COVID-19 spread
Wearing a mask and physical distancing will still be required.
On Monday, Gov. Gavin Newsom ordered several sectors to once again shut down amid an increasingly concerning coronavirus surge.
In counties on the state's watch list -- including Los Angeles, Orange, Riverside, San Bernardino and Ventura counties -- even more businesses are being required to close their doors. That includes places of worship, gyms, hair salons, barbershops, other personal care services, indoor malls, offices in non-critical sectors.