The numerical rating for the region was 512 which is listed as 'hazardous' on the NSW Department of Planning, Industry and Environment (DPIE) website.

This level is more than double the DPIE's minimum to be registered as hazardous.

READ MORE: Heatwave set to elevate NSW fire risk

The DPIE said everyone, especially people with heart or lung disease, should avoid outdoor exertion and stay inside as much as possible.

"If you have symptoms rest and use your reliever medicine," the warning states.

"If symptoms persist, seek medical advice."

READ MORE: Ex-fire chiefs could go it alone on crisis

Meanwhile, the largest bushfire burning in the region is the Gospers Mountain fire which has reached 401,754 hectares and is burning within six kilometres of Mount Piper Power Plant.

An emergency warning was issued for this fire on Monday afternoon, however this has since been downgraded to advice level.

READ ALSO: Top stories in NSW in 2019

Other fires include the 140,827 hectare Green Wattle Creek bushfire which is burning out-of-control through the Kanangra-Boyd National Park, and the 2221 hectare Palmers Oaky bushfire.

Stay up-to-date with fires in your area at Fires Near Me.

Why not subscribe, the first 30 days of full website access is free.