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BoM Grampus Marine Weather Forecast

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Mean Sea Level Prognosis Charts

Other SA Coastal Waters Forecasts

Forecast for Thursday, 18 June
Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Winds: North to northwesterly 20 to 30 knots shifting southwesterly in the evening.
Seas: 2 to 3 metres.
Swell: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds turning southerly in the early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 2 to 4 metres, decreasing to 3 metres during the afternoon.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 70% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the day.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell: Southwesterly 2 to 3 metres. Below 0.5 metres, tending southerly 1 to 2 metres during the morning.

Forecast for Thursday, 18 June
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm from late this morning.
Winds: West to northwesterly 25 to 30 knots turning southwesterly in the early morning.
Seas: 2 to 3 metres.
Swell: Southwesterly 1.5 to 2.5 metres, increasing to 2 to 4 metres around midday.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds turning southerly 15 to 25 knots in the early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres around midday.
Forecast for Saturday, 20 June
Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots turning southeasterly below 10 knots during the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: South to southwesterly 2 to 3 metres. Southerly below 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening.

Forecast for Thursday, 18 June
Weather: Becoming cloudy. 80% chance of showers.
Winds: Northwesterly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
Swell: West to southwesterly below 0.5 metres.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: West to southwesterly 15 to 20 knots tending south to southwesterly in the late morning and afternoon.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: West to southwesterly below 0.5 metres.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 80% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: Southeast to southwesterly below 0.5 metres.

Forecast for Thursday, 18 June
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm this morning.
Winds: Northwesterly 20 to 25 knots, reaching up to 30 knots during the day. Winds turning westerly in the late evening.
Seas: 1.5 to 2.5 metres.
Swell: West to southwesterly below 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: Southwesterly 15 to 25 knots turning southerly 15 to 20 knots in the evening.
Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre later in the evening.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 70% chance of showers.
Winds: South to southeasterly 15 to 20 knots decreasing to about 10 knots during the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell: West to southwesterly around 1 metre, increasing to 1.5 to 2.5 metres through the Backstairs Passage.

Forecast for Thursday, 18 June
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm during this afternoon and evening.
Winds: Northerly 20 to 30 knots tending northwesterly 20 to 25 knots in the early morning then increasing to 20 to 30 knots in the middle of the day. Winds reaching up to 35 knots south of Beachport in the late evening.
Seas: 2 to 3 metres.
Swell: Southwesterly 1.5 metres.
Forecast for Friday, 19 June
Weather: Cloudy. Near 100% chance of showers.
Winds: West to northwesterly 25 to 30 knots turning south to southwesterly 20 to 30 knots during the morning. Winds reaching up to 35 knots south of Port MacDonnell during the morning.
Seas: 2 to 3 metres.
Swell: Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning, then increasing to 3 to 4 metres during the afternoon.
Forecast for Saturday, 20 June
Weather: Cloudy. 80% chance of showers.
Winds: Southerly 15 to 25 knots decreasing to 10 to 15 knots during the day.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre during the afternoon.
Swell: Southerly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.

Forecast for Thursday, 18 June
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Winds: Northwesterly 25 to 30 knots turning southwesterly in the late afternoon.
Seas: 2.5 to 4 metres, decreasing to 2 to 2.5 metres by early evening.
Swell: West to southwesterly 1.5 to 2.5 metres inshore, increasing to 2 to 4 metres offshore by early evening.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots offshore early in the morning. Winds turning southerly in the middle of the day.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres around midday.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 70% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the morning.
Seas: 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2.5 to 3 metres. Southeast to southwesterly around 1 metre, tending south to southwesterly 1 to 2 metres during the afternoon or evening.

Forecast for Thursday, 18 June
Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Winds: Northwesterly 20 to 30 knots turning west to southwesterly during the afternoon and evening.
Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southwesterly 1.5 metres.
Forecast for Friday, 19 June
Weather: Cloudy. 95% chance of showers.
Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds turning southerly in the early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 1.5 metres, increasing to 2 to 3 metres during the morning.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 80% chance of showers.
Winds: Southerly 15 to 25 knots decreasing to 10 to 15 knots during the day.
Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon or evening.
Swell: South to southwesterly 3 to 4 metres, decreasing to 2 to 3 metres during the afternoon. Below 0.5 metres, tending southeast to southwesterly 1 to 2 metres during the morning.

Forecast for Thursday, 18 June
Weather: Becoming cloudy. 80% chance of showers south of Cowell to Wallaroo, 50% chance elsewhere.
Winds: North to northwesterly 15 to 25 knots, reaching up to 30 knots during the day. Winds tending west to northwesterly 20 to 25 knots in the evening.
Seas: 1.5 to 2.5 metres.
Swell: South to southwesterly around 1 metre.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: West to southwesterly 15 to 20 knots, reaching up to 25 knots south of Cowell to Wallaroo during the morning and early afternoon. Winds tending south to southwesterly in the late morning and afternoon.
Seas: 1 to 2 metres.
Swell: South to southwesterly below 1 metre, increasing to 1 to 2 metres during the morning.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 70% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell: South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.

Forecast for Thursday, 18 June
Weather: Partly cloudy. 90% chance of showers.
Winds: Northwesterly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas: 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 2 to 2.5 metres around midday.
Swell: Southwesterly 1 to 1.5 metres.
Forecast for Friday, 19 June
Weather: Cloudy. Near 100% chance of showers.
Winds: Westerly 20 to 25 knots, reaching up to 30 knots offshore early in the morning. Winds turning south to southwesterly 15 to 25 knots during the morning and early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 1.5 metres, increasing to 2 to 3 metres around midday.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 90% chance of showers.
Winds: Southerly 15 to 25 knots turning southeasterly 10 to 15 knots during the day.
Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon.
Swell: South to southwesterly 2.5 to 3 metres. South to southwesterly around 1 metre.

Forecast for Thursday, 18 June
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm from late this morning.
Winds: Northwesterly 25 to 30 knots turning west to southwesterly in the late morning and early afternoon.
Seas: 2 to 3 metres.
Swell: Southwesterly 1.5 to 2 metres, tending westerly 1 to 2 metres during the morning, then tending southwesterly 2 to 4 metres during the afternoon.
Forecast for Friday, 19 June
Weather: Partly cloudy. 95% chance of showers.
Winds: Southwesterly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds turning southerly 15 to 25 knots in the middle of the day.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Forecast for Saturday, 20 June
Weather: Partly cloudy. 60% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the morning.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell: Southwesterly 2.5 to 3 metres, tending southerly 2.5 to 3 metres during the evening.
Yunta
▲ N
6 kn WNW
· 12 °C
Warnings
No warnings within 100 km.
State Wide
Marine
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Temperature
Grampus
12 °C 15 °C 2pm 7 °C 9pm
↓ Cooling
Now: 12 °C
Weather Now for Grampus
Mostly sunny.
12 °C
Feels like 10 °C
Wind
6 kn WNW
Humidity
92%
Pressure
1011 hPa
At Yunta
Nearby Wind
50 km radius
N S W E 6 kn Yunta
Grampus
6 kn WNW
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 12°
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Menora
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Sun
7:13am rise 5:13pm set
9 h 59 m of daylight
Now: 3:52am
10 seconds less than yesterday
Moon
10:02am rise 8:38pm set
10% illuminated
Waxing Crescent
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