Emergency warnings have been issued for both bushfires, which are threatening homes. Some people have been told it is "too late to leave".
One fire, near Croobyar Road at Mount Kingiman, has burnt about 100 hectares and is being fanned by strong winds and dry conditions.
Meanwhile, NSW RFS deputy commissioner Rob Rogers said crews were battling to save homes at north Nowra.
The NSW RFS said residents in the area of Woodstock, near Ulladulla, were advised to seek shelter in a solid structure as the fire approaches. It is too late to leave.
Residents in Burrill Lake, Kings Point and south of Ulladulla who are not prepared or plan to leave, should head north to central Ulladulla.
