"The weather out here in California seems to be cooling down today and over the next couple days, and that should hopefully help firefighters get even more containment," Tolmachoff said. "They should make better progress over the next couple of days."
Temperatures are expected to again reach 37C or more by the end of the week.
The Holy Fire — named for Holy Jim Canyon, where it began — is one of nearly 20 blazes burning across California as the state sees earlier, longer and more destructive wildfire seasons because of drought, warmer weather attributed to climate change and home construction deeper into forests.
Elsewhere, the largest wildfire ever recorded in California — the Mendocino Complex — burning north of Sacramento that destroyed more than 100 homes is nearly 70 per cent contained. Yesterday, it covered 1359 sq km.
The two-week-old Carr Fire that killed eight people and burned more than 1000 homes was more than 50 percent contained.
- AP