New South Wales

Synoptic Situation: A strong and slow-moving high pressure system near New Zealand extends a ridge towards New South Wales, and is bringing a gradual return to northeasterly winds to all coastal waters. Winds are forecast to increase on Friday ahead of a cold front, which will bring a southerly change to the southern coast later Saturday, extending to central parts on Sunday before stalling. A second front will follow on Monday, pushing the change to the Queensland border by Tuesday.
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.

Illawarra Coast: Port Hacking to Ulladulla

Thursday 19 September

Winds: Northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the late evening.
Seas: Around 1 metre, increasing to 1.5 metres offshore.
Swell 1: Easterly 1.5 metres.
Weather: Partly cloudy.

Friday 20 September

Winds: Northeasterly 15 to 25 knots, reaching up to 30 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
Swell 1: Easterly around 1 metre.
Weather: Partly cloudy. 50% chance of showers in the morning.

Saturday 21 September

Winds: North to northeasterly 20 to 30 knots.
Seas: 2 to 3 metres.
Swell 1: East to northeasterly 1 to 1.5 metres.
Swell 2: Southerly 1 to 1.5 metres.
Weather: Partly cloudy.

Sunday 22 September

Winds: Northwest to northeasterly 15 to 25 knots tending southerly 10 to 15 knots during the morning then northeast to southeasterly during the afternoon.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell 1: Northeasterly 1.5 to 2 metres.
Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the morning.