New South Wales

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.

Sydney Closed Waters

Tuesday 17 September

Synoptic Situation: A cold front that move through most of New south Wales yesterday is continuing to linger as a low pressure trough in the states northeast this afternoon. A low pressure system is currently developing within this trough, offshore near to Port Stephens. This will reinforce a vigorous southerly flow along much of the coast during the next 24 hours, with likely gales about central parts of the coast. The low should weaken during Wednesday and Thursday as a high pressure system becomes dominant over the Tasman Sea, pushing a ridge into New South Wales, and bringing a gradual return to northeasterly winds. Another cold front looks set to arrive on the weekend.

Wednesday 18 September

Winds: Southeasterly 25 to 30 knots decreasing to 15 to 25 knots in the morning then tending easterly 10 to 15 knots in the evening.
Seas: Below 1 metre.
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm during this afternoon and evening.

Thursday 19 September

Winds: Easterly 10 to 15 knots tending northeasterly 15 to 20 knots in the morning.
Seas: Below 0.5 metres.
Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the late morning and afternoon.

Friday 20 September

Winds: Northeasterly about 10 knots increasing to 15 to 20 knots during the afternoon.
Seas: Below 0.5 metres.
Weather: Partly cloudy.

Saturday 21 September

Winds: North to northeasterly 10 to 15 knots becoming north to northwesterly below 10 knots during the evening.
Seas: Below 0.5 metres.
Weather: Partly cloudy.