A lull on Saturday allowed some containment of the blazes, in the north and south of the state, before hot dry Santa Ana desert winds return.
A search for bodies continues in the devastated northern town of Paradise, where 23 people are known to have died.
Two more people were killed in the southern fire, near Malibu.
An estimated 250,000 people have been forced to flee their homes to avoid three major blazes in the state.
So far this year an area larger than Belgium and Luxembourg has burned, well above the average.