Californian residents advised to limit outdoors as wildfires continue to deteriorate air quality.

The US National Weather Service (NWS) advised South California residents to limit outdoor activities due to bad air quality amid devastating wildfires.

The NWS has issued several air quality alerts covering the South Coast Air Basin, Coachella Valley and eastern Riverside County.

The NWS has issued Red Flag Warnings, High Wind Warnings, and Wind Advisories for much of the area. Last week, local authorities confirmed that fierce wildfires across Southern California have killed at least 27 people and destroyed at least 12,300 structures after more than a week.

Very strong Santa Ana winds and extreme fire weather have been forecasted for portions of Los Angeles and Ventura counties starting Monday.

Stronger and more widespread Santa Ana winds are expected overnight to the typical wind-prone areas of Los Angeles and Ventura counties, according to the NWS Los Angeles.

The South Coast Air Quality Management District has issued a windblown dust and ash advisory due to strong Santa Ana winds expected throughout the region through Tuesday evening.

The NWS has issued Red Flag Warnings, High Wind Warnings, and Wind Advisories for much of the area.

Last week, local authorities confirmed that fierce wildfires across Southern California have killed at least 27 people and destroyed at least 12,300 structures after more than a week.

The Palisades Fire, the largest active wildfire in the Los Angeles region, has scorched 23,713 acres (95.96 square km). The fire, which broke out on January 7, is 31 per cent contained, up from 22 per cent early Thursday.