Beginning Saturday, "non-essential work, movement and gatherings" in purple tier counties must stop between 10 p.m.to 5 a.m.
California, like many other parts of the United States, is witnessing a rise in COVID-19 cases.
'It is crucial that we act to decrease transmission and slow hospitalizations before the death count surges. That covers 94% of the state's almost 40 million residents. As part of that announcement, 28 counties were moved back to the restrictive "purple" tier of the monitoring system, leaving a total of 41 of the state's 58 counties in that tier.More news: Level 4 to be imposed in 11 Scottish council areas
'The virus is spreading at a pace we haven't seen since the start of this pandemic and the next several days and weeks will be critical to stop the surge. "We are sounding the alarm", Newsom said in a statement. As Slate reports, epidemiologist point to unwanted side effects of curfews - for instance, they could condense peoples' restaurant visits into a shorter period of time and therefore cause there to be more crowding in some places.
The new stay-at-home order comes as Newsom continues to weather sharp criticism for attending a birthday dinner with at least 10 people at The French Laundry, a Michelin star restaurant in Napa Valley, just days before advising Californians not to host indoor Thanksgiving dinners.
Ghaly said local jurisdictions can use the curfew to enforce health orders "to the extent that they believe it helps them control these activities that could add to the transmission". "We don't have the resources", he said.More news: Twitter apologises in writing for showing Ladakh in China
In Sacramento County, where Newsom unveiled the curfew, Sheriff Scott Jones was quick to say he has no intention of enforcing the rule. There have been more than 68,000 new cases in the last week, and almost 350 more deaths.
California was the first state to execute a stay-at-home order when the pandemic erupted in the spring.
As the Downtown Disney District as well as Buena Vista Street both now close at 10pm, we may see operating hours reduce in order to give guests the opportunity to get home before curfew. California is imposing an overnight curfew on most residents to blunt a surge in coronavirus infections.
San Diego County is among the California counties in which a curfew will take effect, according to Gov. Gavin Newsom.More news: How to enable WhatsApp disappearing messages feature on Android, iOS and KaiOS
He also urged people to follow safety behaviors.