Up to 70 flights have been cancelled in and out of Sydney airport as strong winds buffet the runways.
A Sydney airport spokeswoman said planes were restricted to using only one runway due to the gusty conditions on Thursday.
The Bureau of Meteorology has recorded wind gusts at the airport of up to 67km/h.
It has also issued a strong wind warning for Sydney and much of the NSW coast, a day after hot and windy conditions led to a total fire ban across large swathes of the state.
Up to 70 flights have been cancelled in and out of Sydney airport as strong winds buffet the runways. File photo
Meanwhile, authorities warned that although light rain has helped NSW firefighters gain an upper hand over several bushfires burning across the state, the threat is not over.
More than 90 fires are burning across NSW with about 30 of them out of control.
On Thursday, firefighters focused on containing the fires, which took off during an unseasonably hot Wednesday, threatening homes in the NSW Hunter region and mid-north coast.