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BoM Greta Main Marine Weather Forecast

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Other NSW Coastal Waters Forecasts

Forecast for Wednesday, 23 September
Weather: Cloudy. 60% chance of showers.
Winds: Northeasterly 15 to 20 knots.
Seas: Around 1 metre, increasing to 1.5 metres offshore.
Swell: Southerly 1 to 1.5 metres.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: North to 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 during the afternoon.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Northeasterly around 1 metre.
Forecast for Friday, 25 September
Weather: Mostly sunny.
Winds: Northerly 20 to 30 knots decreasing to 15 to 25 knots before dawn.
Seas: 1.5 to 2.5 metres, decreasing below 1.5 metres by early evening.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the afternoon.
Forecast for Saturday, 26 September
Weather: Partly cloudy.
Winds: North to northwesterly 10 to 15 knots becoming variable about 10 knots during the morning then becoming south to southeasterly 15 to 20 knots during the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening.
Swell: Northeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon. Southerly around 1 metre.

Forecast for Wednesday, 23 September
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Yamba. Southeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Cape Byron.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots, reaching up to 20 knots offshore north of Yamba during the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore north of Cape Byron during the morning.
Swell: Southerly around 1 metre. Easterly around 1 metre.
Forecast for Friday, 25 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots turning northeasterly in the late morning and afternoon.
Seas: Below 1 metre.
Swell: Easterly 1 to 1.5 metres.
Forecast for Saturday, 26 September
Weather: Cloud clearing.
Winds: Northeasterly 15 to 20 knots turning northerly during the afternoon.
Seas: Below 1 metre, increasing to 1 to 1.5 metres south of Cape Byron during the afternoon or evening.
Swell: East to northeasterly around 1 metre, increasing to 1 to 1.5 metres north of Yamba.

Forecast for Wednesday, 23 September
Weather: Partly cloudy.
Winds: East to northeasterly 10 to 15 knots.
Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore.
Swell: Southerly 1.5 metres. Easterly around 1 metre.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Northeasterly 15 to 20 knots.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Coffs Harbour during the morning.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Easterly around 1 metre.
Forecast for Friday, 25 September
Weather: Partly cloudy.
Winds: Northeasterly 15 to 20 knots turning northerly in the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Coffs Harbour during the afternoon.
Swell: East to northeasterly around 1 metre.
Forecast for Saturday, 26 September
Weather: Mostly sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
Swell: Northeasterly around 1 metre.

Forecast for Wednesday, 23 September
Weather: Partly cloudy.
Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon. Winds turning northerly in the late evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres inshore.
Swell: Southerly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Green Cape.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots offshore in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre around midday. Northeasterly around 1 metre.
Forecast for Friday, 25 September
Weather: Partly cloudy.
Winds: Northerly 20 to 30 knots decreasing to 15 to 25 knots before dawn then decreasing to 10 to 15 knots in the morning.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre by early evening.
Swell: North to northeasterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then tending northeasterly 1 to 1.5 metres around midday. Southerly around 1 metre.
Forecast for Saturday, 26 September
Weather: Partly cloudy. 60% chance of showers.
Winds: West to southwesterly 10 to 15 knots turning southerly 15 to 25 knots during the morning.
Seas: Around 1 metre, increasing to 1 to 2 metres during the afternoon.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Green Cape during the evening. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon or evening.

Forecast for Wednesday, 23 September
Weather: Cloudy.
Winds: Southerly 10 to 15 knots inshore, shifting northeasterly offshore and increasing to 20 to 25 knots, and reaching up to 30 knots during the late afternoon.
Seas: 2 to 2.5 metres.
Swell: Southerly 1.5 to 2 metres.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Northeasterly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre by early evening.
Forecast for Friday, 25 September
Weather: Sunny.
Winds: Northerly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southerly around 1 metre.
Forecast for Saturday, 26 September
Weather: Sunny.
Winds: Northerly 20 to 30 knots.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore.
Swell: Northeasterly around 1 metre south of Port Stephens.

Forecast for Wednesday, 23 September
Weather: Cloudy. 70% chance of showers.
Winds: Northeasterly 10 to 15 knots, tending southerly inshore north of Port Kembla. Winds shifting northeasterly 15 to 25 knots offshore and reaching up to 30 knots offshore north of Port Kembla in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Point Perpendicular.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre later in the evening. Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Kembla by early evening.
Forecast for Thursday, 24 September
Weather: Cloud clearing.
Winds: North to northeasterly 15 to 25 knots, reaching up to 30 knots offshore north of Port Kembla during the afternoon and evening.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.
Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Southerly around 1 metre.
Forecast for Friday, 25 September
Weather: Mostly sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore around midday.
Forecast for Saturday, 26 September
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots shifting southerly during the afternoon.
Seas: 1 to 1.5 metres.
Swell: Northeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.

Forecast for Wednesday, 23 September
Weather: Cloudy.
Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots south of Crowdy Head in the late afternoon.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Crowdy Head.
Swell: Southerly 1.5 metres, increasing to 1.5 to 2 metres south of Port Macquarie.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots south of Port Macquarie in the late morning and afternoon.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Forecast for Friday, 25 September
Weather: Mostly sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres around midday.
Swell: Southerly around 1 metre.
Forecast for Saturday, 26 September
Weather: Sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southerly below 1 metre.

Forecast for Wednesday, 23 September
Weather: Cloudy. 50% chance of showers.
Winds: Southerly 10 to 15 knots inshore, shifting northeasterly offshore and increasing to 20 to 30 knots during the afternoon and evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Forecast for Thursday, 24 September
Weather: Partly cloudy.
Winds: Northeasterly 15 to 25 knots, reaching up to 30 knots offshore in the late afternoon. Winds tending northerly 20 to 25 knots in the late evening.
Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
Swell: Southerly around 1 metre.
Forecast for Friday, 25 September
Weather: Sunny.
Winds: Northerly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southerly below 1 metre.
Forecast for Saturday, 26 September
Weather: Sunny.
Winds: Northerly 15 to 20 knots shifting southerly during the evening.
Seas: 1 to 2 metres.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Cessnock Airport
▲ N
5 kn SSE
· 18 °C
Warnings
No warnings within 100 km.
State Wide
Marine Surf
View all NSW warnings
Temperature
Greta Main
18 °C 23 °C 2pm 12 °C 5am
↓ Cooling
Now: 18 °C
Tides
Myuna Bay
6:07pm 0.95m 12:51am 0.13m
↓ Falling
Current: 0.90m
Weather Now for Greta Main
Mostly clear.
18 °C
Feels like 18 °C
Wind
5 kn SSE
Humidity
80%
Pressure
1028 hPa
At Cessnock Airport
Nearby Wind
50 km radius
N S W E 8 kn Singleton Defence Calm Lake Macquarie 5 kn Maitland Airport 8 kn Nobbys Head 3 kn Mangrove Mountain
Greta Main
5 kn SSE
Recent Locations
Greta Main
5 kn SSE
 18°
Runnyford -
Warri
7 kn S
 12°
Catherine Field
Calm
16°
Charleys Forest
7 kn S
 12°
Stokers Siding -
Coonamble Airport
7 kn NE
 25°
Sun
5:43am rise 5:51pm set
12 h 8 m of daylight
Now: 7:09pm
120 seconds more than yesterday
Moon
2:23pmrise 3:39amset
88% illuminated
Waxing Gibbous
Live Weather
Nearby
Cessnock Airport, NSW
5 kn SSE
 18°
Singleton Defence, NSW
8 kn SE
 19°
Lake Macquarie, NSW
Calm
17°
Maitland Airport, NSW
5 kn SE
 18°
Tocal, NSW
2 kn S
 18°
Nobbys Head, NSW
8 kn ENE
 18°
Mangrove Mountain, NSW
3 kn ESE
 16°
Windiest in Australia
Gabo Island, VIC
25 kn NNE
 16°
Most Windless in Australia
Parawa, SA
Calm
16°
Hottest in Australia
Fitzroy Crossing, WA
6 kn ENE
 37°
Coldest in Australia
Perisher Valley, NSW
Calm
3°
Wettest in Australia
Mount Stuart (Defence), QLD
 24.6 mm
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