Sydney residents woke to an unmistakable smell of smoke on Friday, with a grey haze lingering over parts of the city and air-quality alerts issued across large areas of New South Wales. While there are no major fires burning in metropolitan Sydney itself, fire authorities say smoke from active bushfires north of the city has drifted hundreds of kilometres overnight, settling across the Sydney basin and nearby regions.
According to the NSW Rural Fire Service, two bushfires — one in the Port Stephens area near Medowie and another at Nerong on the NSW Mid Coast — are responsible for the widespread smoke now affecting millions of residents. Light winds and stable overnight conditions allowed smoke to travel south and pool over low-lying areas, rather than dispersing out to sea.
Fire crews have been working through the night on both blazes. The Port Stephens fire, burning between Medowie and Oyster Cove about 25 kilometres north-east of Newcastle, has grown to around 432 hectares but is now listed as contained. Firefighters spent Thursday strengthening containment lines, particularly on the north-western edge of the fire near Moffats Swamp Nature Reserve, to prevent further spread.
The second fire, burning near Nerong on the Mid Coast, is significantly larger at about 916 hectares and remains not yet under control. Crews from the NSW National Parks and Wildlife Service are working to contain the blaze in challenging bushland, where dense vegetation has contributed to persistent smoke.
Although these fires are some distance from Sydney, meteorologists explain that smoke can travel long distances under the right conditions. Overnight temperature inversions — where cooler air becomes trapped near the ground — combined with gentle winds have allowed smoke to spread across the Hunter Valley, Newcastle, the Central Coast and into Sydney. By early morning, many suburbs reported reduced visibility and the strong smell of smoke.
Smoke Advisory | Overnight, smoke from bushfires burning near Medowie in Port Stephens and at Nerong on the Mid Coast has drifted south along the coast and across parts of the Hunter Valley, Newcastle, the Central Coast and into Sydney.
— Fire and Rescue NSW (@FRNSW) January 30, 2026
Residents in these areas may see or smell…
Air-quality monitors operated by the NSW government recorded “poor” air quality across eastern Sydney, the Central Coast and the Lake Macquarie region on Friday morning. In these areas, fine particles from bushfire smoke can irritate the eyes and throat and worsen symptoms for people with asthma, heart disease or other respiratory conditions. Air quality was rated “fair” in other parts of the state, including western and south-west Sydney, the Illawarra, and large parts of the Hunter and Riverina-Murray regions.
Health authorities recommend that residents limit strenuous outdoor activity when air quality is poor, particularly during the early morning when smoke levels tend to be highest. Closing windows and doors, using air conditioners on recirculate mode and checking official air-quality updates can help reduce exposure. Those experiencing breathing difficulties or chest pain are urged to seek medical advice.
Fire authorities have stressed that there is no immediate threat to Sydney from the fires themselves, but conditions can change quickly. Residents in fire-affected areas near Medowie, Oyster Cove and Nerong have been advised to stay informed and monitor official warnings in case fire behaviour shifts due to wind or weather changes.
The NSW Rural Fire Service says smoke should gradually clear as daytime winds pick up and atmospheric conditions change, though intermittent haze may linger while the Mid Coast fire remains active. “Please only call Triple Zero (000) if you see an unattended fire,” the agency said, noting that unnecessary calls can delay emergency responses elsewhere.
Bushfire smoke events like this are becoming increasingly familiar to NSW residents, even outside peak summer fire seasons. Experts say large fires, prolonged dry conditions and shifting wind patterns mean smoke can affect major population centres even when fires are burning far away. While Friday’s haze is expected to ease, authorities warn that similar smoke impacts are possible whenever large bushfires are burning across the state.
For now, residents are urged to stay alert, follow official advice and take simple steps to protect their health until air quality improves.
