Total fire bans are in place across large swathes of northern and eastern NSW as hot and windy conditions keep firefighters on alert.
The Rural Fire Service (RFS) has declared four regions as having a severe fire danger on Wednesday including Greater Sydney Region, Greater Hunter, North Coast and North Western regions.
Temperatures in the mid-30s combined with strong north-westerly winds mean conditions will be challenging, RFS Inspector Ben Shepherd told AAP.
Winds are forecast to reach 40-50km/h with gusts up to 70km/h.
“More than 70 fires are burning across the state, with 20 of them uncontained, and we will be monitoring all of them,” Insp Shepherd said.
More than 100 firefighters fought a fire in Sydney’s northern suburb of Beacon Hill on Tuesday afternoon and hope to strengthen containment lines ahead of Wednesday.
The fire threatened dozens of properties but crews managed to keep it at bay with the help of water-bombing aircraft.
As the fire season kicks into gear, all NSW residents are being urged to clean up and maintain their properties and have a fire plan in place.