KEY POINTS:
SYDNEY - The rain falling in parts of NSW is not all good news for crews battling 25 bushfires across NSW, the Rural Fire Service says.
Many of the fires are still burning out of control despite cooler conditions and light, steady rain.
Hundreds of firefighters will take advantage of Tuesday's weather, which will prove to be both a help and a hindrance.
"It's a bit of Catch-22," an RFS spokesman told AAP.
"Whilst it definitely does slow the spread of a fire, it doesn't allow us to do any backburning operations."
No homes or property are under threat but the fires are burning in rugged bushland that can be difficult to access in wet weather.
"It can make the fire trails very slippery and impassable for some of our units (vehicles)," the spokesman said.
"It just sort of puts everything on pause."
The RFS welcomed Tuesday's wet weather, but it would only give firefighters a break and not a solution.
"It gives us a chance to have a bit of a breather on some of these fires but it definitely won't put it out," he said.
A fire in the Bega Valley, near the far south NSW coast, has ravaged more than 2,300ha in the South East Forest National Park.
It started with a lightning strike on January 24 and about 70 firefighters are working to contain the blaze.
A fire in the Deua National Park on the south coast has torched more than 900ha and is still burning out of control.
No property is under threat but nearby residents have been urged to clear all flammable materials from their properties.
More than 1,800ha have been destroyed by a fire near Singleton, in the Hunter region.
The blaze is centred in the Wollemi National Park and is burning out of control but fire crews are working with the assistance of waterbombing aircraft and tractors to contain it.
Nearly 300ha of the Brisbane Waters National Park, at Peats Ridge on the Central Coast, have been destroyed by a fire that started on Saturday and spread quickly.
Homes were under threat at one point but crews have now contained the fire.
A 31-year-old man was refused bail in Gosford Local Court on Monday after he faced arson charges over a weekend blaze at Kariong, near Somersby, on NSW's Central Coast.
Jason Nicholas Farrell, 31, from Killarney Vale, was charged on Sunday with intentionally causing fire and being reckless as to its spread, and setting fire to the property of another person or the crown.
- AAP
