BoM Sydney Marine Weather Forecast


Direct from the Bureau of Meteorology (BoM)

Sydney Closed Waters Forecast
Local Waters Forecast for Sydney Closed Waters
Issued: Thursday, 21 September 4:05AM
Weather Situation
A high pressure system centred over the far northeast of the state is expected move slowly east over over the northern Tasman Sea for the following few days, establishing generally light northerly winds over the waters. A trough may bring a weak southerly change to the southern waters during Friday, otherwise northerly winds will dominate, then strengthen ahead of the next cold front expected later in the weekend.
Forecast for Thursday, 21 September
Winds: North to northwesterly below 10 knots tending northeasterly 10 to 20 knots in the afternoon then tending northerly 10 to 15 knots in the late evening.
Seas: Below 0.5 metres.
Swell:
Weather: Sunny.
Forecast for Friday, 22 September
Winds: West to northwesterly about 10 knots tending northeasterly 10 to 15 knots in the middle of the day then turning north to northwesterly below 10 knots in the evening.
Seas: Below 0.5 metres.
Swell:
Weather: Mostly sunny.
Forecast for Saturday, 23 September
Winds: North to northwesterly about 10 knots increasing to 15 to 20 knots during the morning.
Seas: Below 0.5 metres.
Swell:
Weather: Sunny.
Forecast for Sunday, 24 September
Winds: Northwesterly 15 to 20 knots turning westerly 10 to 15 knots during the day.
Seas: Below 0.5 metres.
Swell:
Weather: Mostly sunny.

Byron Coast: Point Danger to Wooli Forecast
Local Waters Forecast for Byron Coast: Point Danger to Wooli
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the middle of the day. Winds reaching up to 20 knots inshore in the evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres south of Cape Byron by early evening.
Swell: Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore north of Yamba.
Weather: Cloud clearing.
Forecast for Friday, 22 September
Winds: Northerly 15 to 20 knots.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres.
Weather: Partly cloudy. 20% chance of a shower. The chance of a thunderstorm north of Yamba in the early morning.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots during the evening.
Seas: 1.5 to 2.5 metres.
Swell: North to northeasterly below 1 metre inshore, increasing to around 1 metre offshore south of Cape Byron.
Weather: Mostly sunny.
Coffs Coast: Wooli to Smoky Cape Forecast
Local Waters Forecast for Coffs Coast: Wooli to Smoky Cape
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: Northerly about 10 knots increasing to 15 to 20 knots in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Coffs Harbour.
Weather: Mostly sunny.
Forecast for Friday, 22 September
Winds: Northerly 15 to 20 knots.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Coffs Harbour.
Swell: Southerly 1 to 1.5 metres.
Weather: Mostly sunny. 20% chance of a shower inshore in the afternoon. Near zero chance of rain elsewhere.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots during the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon or evening.
Swell: North to northeasterly around 1 metre.
Weather: Partly cloudy.
Macquarie Coast: Smoky Cape to Seal Rocks Forecast
Local Waters Forecast for Macquarie Coast: Smoky Cape to Seal Rocks
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: Northerly about 10 knots increasing to 15 to 20 knots in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the morning.
Weather: Sunny.
Forecast for Friday, 22 September
Winds: Northerly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southerly 1 to 1.5 metres.
Weather: Sunny.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 25 to 30 knots during the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Swell: North to northeasterly below 1 metre.
Weather: Mostly sunny.
Hunter Coast: Seal Rocks to Broken Bay Forecast
Local Waters Forecast for Hunter Coast: Seal Rocks to Broken Bay
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: North to northwesterly about 10 knots tending north to northeasterly 15 to 20 knots in the morning.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather: Sunny.
Forecast for Friday, 22 September
Winds: North to northwesterly 15 to 20 knots becoming variable about 10 knots in the middle of the day then becoming north to northeasterly 15 to 20 knots in the early afternoon.
Seas: 1 to 1.5 metres.
Swell: Southerly 1 to 1.5 metres.
Weather: Sunny.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots during the evening.
Seas: 1 to 1.5 metres, increasing to 2 to 3 metres during the afternoon or evening.
Swell: Southerly below 1 metre.
Weather: Sunny.
Sydney Coast: Broken Bay to Port Hacking Forecast
Local Waters Forecast for Sydney Coast: Broken Bay to Port Hacking
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: North to northwesterly about 10 knots tending north to northeasterly 15 to 20 knots in the middle of the day.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre later in the evening.
Weather: Sunny.
Forecast for Friday, 22 September
Winds: North to northwesterly 10 to 15 knots tending north to northeasterly 15 to 20 knots in the middle of the day.
Seas: 1 to 1.5 metres.
Swell: Southerly around 1 metre.
Weather: Sunny.
Forecast for Saturday, 23 September
Winds: Northerly 20 to 30 knots.
Seas: Around 1 metre, increasing to 2 to 3 metres during the afternoon.
Swell: Southerly below 1 metre.
Weather: Sunny.
Illawarra Coast: Port Hacking to Ulladulla Forecast
Local Waters Forecast for Illawarra Coast: Port Hacking to Ulladulla
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: North to northwesterly about 10 knots increasing to 10 to 15 knots offshore during the morning. Winds tending north to northeasterly 15 to 20 knots during the afternoon and northerly 10 to 15 knots in the late evening.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather: Sunny.
Forecast for Friday, 22 September
Winds: North to northwesterly 10 to 15 knots tending north to northeasterly in the middle of the day.
Seas: Around 1 metre.
Swell: Southerly around 1 metre.
Weather: Mostly sunny.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots during the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon or evening.
Swell: South to southeasterly below 1 metre.
Weather: Mostly sunny.
Batemans Coast: Ulladulla to Montague Island Forecast
Local Waters Forecast for Batemans Coast: Ulladulla to Montague Island
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: Northerly 10 to 15 knots tending north to northeasterly 15 to 20 knots in the afternoon, and reaching up to 25 knots inshore in the late afternoon.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather: Sunny.
Forecast for Friday, 22 September
Winds: Northerly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southerly around 1 metre.
Weather: Mostly sunny.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots during the evening.
Seas: 1 to 2 metres.
Swell: East to northeasterly below 1 metre.
Weather: Sunny.
Eden Coast: Montague Island to Gabo Island Forecast
Local Waters Forecast for Eden Coast: Montague Island to Gabo Island
Issued: Thursday, 21 September 4:10AM
Forecast for Thursday, 21 September
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Merimbula during the afternoon and evening. Winds turning west to northwesterly 10 to 15 knots in the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres by early evening.
Swell: Southerly 1 to 1.5 metres.Northeasterly around 1 metre.
Weather: Mostly sunny.
Forecast for Friday, 22 September
Winds: Northwest to northeasterly 10 to 15 knots tending southeast to southwesterly in the middle of the day then becoming variable about 10 knots in the evening.
Seas: Around 1 metre.
Swell: Southeasterly around 1 metre.Northeasterly around 1 metre.
Weather: Partly cloudy.
Forecast for Saturday, 23 September
Winds: Northerly 15 to 25 knots tending northwesterly during the evening.
Seas: Around 1 metre, increasing to 1.5 to 2.5 metres during the morning.
Swell: Northeast to southeasterly below 1 metre.
Weather: Sunny.