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BoM Greta Main Marine Weather Forecast

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Other NSW Coastal Waters Forecasts

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots increasing to 20 to 25 knots in the late evening.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: Northeasterly below 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy.
Winds: Northerly 20 to 25 knots, reaching up to 30 knots offshore south of Moruya Heads during the day. Winds turning northwesterly 15 to 25 knots in the early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Northeasterly around 1 metre inshore, increasing to 1.5 metres offshore later in the evening.
Forecast for Saturday, 20 June
Weather: Mostly sunny. 60% chance of showers.
Winds: West to northwesterly 15 to 25 knots turning south to southwesterly 10 to 15 knots during the day.
Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon.
Swell: Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore during the evening. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.

Forecast for Thursday, 18 June
Weather: Partly cloudy.
Winds: Northerly about 10 knots increasing to 10 to 15 knots in the morning. Winds reaching up to 20 knots south of Cape Byron during the afternoon and evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres south of Cape Byron during the afternoon.
Swell: Easterly 1 to 1.5 metres.
Forecast for Friday, 19 June
Weather: Partly cloudy. 50% chance of showers.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore south of Yamba in the early afternoon.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore south of Yamba.
Swell: Easterly around 1 metre, increasing to 1 to 1.5 metres north of Yamba.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 80% chance of showers.
Winds: Northerly 15 to 20 knots tending northwesterly during the morning then becoming variable about 10 knots during the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Easterly around 1 metre.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore south of Coffs Harbour during the afternoon and evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres around midday.
Swell: East to northeasterly around 1 metre.
Forecast for Friday, 19 June
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots south of Coffs Harbour during the day.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
Swell: East to northeasterly around 1 metre.
Forecast for Saturday, 20 June
Weather: Cloudy. 80% chance of showers.
Winds: Northwesterly 15 to 20 knots shifting south to southwesterly 10 to 15 knots during the morning then becoming variable below 10 knots during the afternoon.
Seas: 1 to 2 metres, decreasing below 1 metre during the morning.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Coffs Harbour.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots increasing to 20 to 25 knots in the middle of the day. Winds reaching up to 30 knots offshore in the late evening.
Seas: Around 1 metre, increasing to 1 to 2 metres around midday.
Swell: Northeasterly below 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy.
Winds: Northerly 20 to 30 knots turning west to northwesterly 15 to 20 knots in the evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres later in the evening.
Swell: North to northeasterly below 1 metre, increasing to 1 to 1.5 metres during the afternoon. Southerly around 1 metre.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 70% chance of showers.
Winds: West to northwesterly 15 to 20 knots turning south to southwesterly 15 to 25 knots during the morning.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore south of Merimbula.
Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Merimbula.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly about 10 knots increasing to 15 to 20 knots in the morning. Winds reaching up to 25 knots offshore north of Port Stephens in the evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres offshore around midday.
Swell: Northeasterly around 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy. 60% chance of showers.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Norah Head in the late morning. Winds turning northwesterly in the afternoon.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Norah Head during the morning.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Stephens during the afternoon.
Forecast for Saturday, 20 June
Weather: Mostly sunny.
Winds: Westerly 15 to 20 knots decreasing to about 10 knots during the evening.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the evening.
Swell: Southerly around 1 metre. Northeasterly around 1 metre.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly about 10 knots increasing to 15 to 20 knots in the morning. Winds reaching up to 25 knots offshore south of Port Kembla in the late evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres around midday.
Swell: Northeasterly below 1 metre.
Forecast for Friday, 19 June
Weather: Cloudy. 60% chance of showers.
Winds: Northerly 15 to 20 knots, reaching up to 30 knots offshore during the morning. Winds turning west to northwesterly in the evening.
Seas: 1.5 to 2.5 metres.
Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore later in the evening.
Forecast for Saturday, 20 June
Weather: Sunny.
Winds: Westerly 15 to 20 knots turning south to southwesterly below 10 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon or evening.
Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.
Swell: East to northeasterly around 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots offshore north of Crowdy Head in the late morning. Winds turning northwesterly 15 to 20 knots in the late evening.
Seas: 1 to 2 metres.
Swell: East to northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Macquarie.
Forecast for Saturday, 20 June
Weather: Cloudy. 70% chance of showers.
Winds: West to northwesterly 15 to 20 knots tending west to southwesterly 10 to 15 knots during the morning then becoming variable below 10 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon or evening.
Swell: Northeasterly around 1 metre, increasing to 1 to 1.5 metres north of Port Macquarie. Southerly around 1 metre.

Forecast for Thursday, 18 June
Weather: Mostly sunny.
Winds: North to northwesterly 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: Northeasterly below 1 metre.
Forecast for Friday, 19 June
Weather: Cloudy. 70% chance of showers.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore during the morning and early afternoon. Winds turning northwesterly in the afternoon.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore.
Swell: Northeasterly around 1 metre.
Forecast for Saturday, 20 June
Weather: Sunny.
Winds: West to northwesterly 15 to 20 knots tending west to southwesterly below 10 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon or evening.
Swell: Southerly around 1 metre. Northeasterly around 1 metre.
Cessnock Airport
▲ N
Calm
· 9 °C
Warnings
No warnings within 100 km.
State Wide
Marine Severe Road Agricultural
View all NSW warnings
Temperature
Greta Main
9 °C 11 °C 5am 20 °C 3pm
↑ Warming
Now: 9 °C
Tides
Swansea
5:30am 0.15m 11:09am 0.85m
↑ Rising
Current: 0.20m
Weather Now for Greta Main
Morning fog then mostly sunny.
9 °C
Feels like 8 °C
Wind
Calm E
Humidity
97%
Pressure
1022 hPa
At Cessnock Airport
Nearby Wind
50 km radius
N S W E 2 kn Singleton Defence Calm Lake Macquarie 4 kn Maitland Airport 7 kn Nobbys Head 2 kn Mangrove Mountain
Greta Main
Calm E
Recent Locations
Greta Main
Calm
9°
Bruce Rock -
Yandanooka
3 kn SSE
 9°
Sun
6:56am rise 4:55pm set
9 h 58 m of daylight
Now: 6:27am
10 seconds less than yesterday
Moon
9:44am rise 8:18pm set
10% illuminated
Waxing Crescent
Live Weather
Nearby
Cessnock Airport, NSW
Calm
9°
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2 kn WSW
 12°
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Calm
11°
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4 kn WNW
 12°
Tocal, NSW
Calm
11°
Nobbys Head, NSW
7 kn NW
 14°
Mangrove Mountain, NSW
2 kn NW
 11°
Windiest in Australia
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30 kn N
Most Windless in Australia
Perth (Coastal), WA
Calm
5°
Hottest in Australia
Cocos Island, WA
8 kn E
 27°
Coldest in Australia
Glen Innes Airport, NSW
3 kn ESE
 -2°
Wettest in Australia
Leigh Creek Airport, SA
 24.4 mm
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