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BoM Mouth Flat Beach Marine Weather Forecast

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Forecast for Thursday, 11 June
Weather: Cloudy.
Winds: North to northeasterly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres later in the evening.
Forecast for Friday, 12 June
Weather: Cloudy. 95% chance of rain in the west, 60% chance elsewhere.
Winds: North to northeasterly 15 to 20 knots, reaching up to 30 knots during the day. Winds turning northwesterly 20 to 25 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 2 to 3 metres during the morning.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres by early evening.
Forecast for Saturday, 13 June
Weather: Partly cloudy. 95% chance of rain.
Winds: West to northwesterly 20 to 25 knots turning southwesterly 15 to 20 knots early 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: Southwesterly 3 to 4 metres.
Forecast for Sunday, 14 June
Weather: Cloudy.
Winds: Variable below 10 knots becoming northeasterly 10 to 15 knots during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon or evening.

Forecast for Thursday, 11 June
Weather: Cloudy. 70% chance of showers. The chance of a thunderstorm in the evening.
Winds: Northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the evening. Winds turning northerly in the evening.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 12 June
Weather: Cloudy. Near 100% chance of rain.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots in the late morning and early afternoon. Winds tending northwesterly 20 to 25 knots in the middle of the day then tending northwest to southwesterly 15 to 25 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 13 June
Weather: Partly cloudy. 60% chance of showers in the early morning.
Winds: Southwesterly 15 to 20 knots tending southerly in the early morning then becoming variable about 10 knots in the late afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Sunday, 14 June
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
Winds: Northeasterly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 3 metres, decreasing to 2 metres during the evening.

Forecast for Thursday, 11 June
Weather: Partly cloudy.
Winds: Northeasterly about 10 knots.
Seas: Below 0.5 metres.
Swell: South to southwesterly below 1 metre.
Forecast for Friday, 12 June
Weather: Cloudy.
Winds: Northeasterly 10 to 15 knots tending northerly 15 to 25 knots in the early morning then increasing to 20 to 30 knots in the evening.
Seas: Around 1 metre, increasing to 1 to 2 metres during the morning.
Swell: South to southwesterly below 1 metre.
Forecast for Saturday, 13 June
Weather: Cloudy. Near 100% chance of rain.
Winds: Northerly 20 to 30 knots shifting south to southwesterly 10 to 15 knots in the morning.
Seas: 1 to 2 metres, decreasing to 1 metre during the morning.
Swell: South to southwesterly below 1 metre.
Forecast for Sunday, 14 June
Weather: Mostly sunny.
Winds: Variable about 10 knots becoming easterly 10 to 15 knots during the afternoon then tending northeasterly during the evening.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre.

Forecast for Thursday, 11 June
Weather: Cloudy.
Winds: Northeasterly about 10 knots.
Seas: Below 1 metre.
Swell: West to southwesterly 1.5 to 2.5 metres.
Forecast for Friday, 12 June
Weather: Cloudy.
Winds: Northeasterly 15 to 20 knots turning northerly 20 to 25 knots in the early morning. Winds reaching up to 30 knots during the day.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres around midday.
Swell: West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres around midday, then increasing to 1 to 2 metres later in the evening.
Forecast for Saturday, 13 June
Weather: Partly cloudy. Near 100% chance of rain.
Winds: North to northwesterly 20 to 30 knots shifting southwesterly 10 to 15 knots in the early morning.
Seas: 1.5 to 2.5 metres, decreasing to 1 metre during the morning.
Swell: West to southwesterly 1 to 2 metres.
Forecast for Sunday, 14 June
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming east to northeasterly 10 to 15 knots during the morning.
Seas: Below 1 metre.
Swell: West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.

Forecast for Thursday, 11 June
Weather: Partly cloudy.
Winds: North to northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 4 metres.
Forecast for Friday, 12 June
Weather: Cloudy. 50% chance of showers.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas: 1 to 1.5 metres, increasing to 2 to 3 metres around midday.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres south of Beachport.
Forecast for Saturday, 13 June
Weather: Partly cloudy. Near 100% chance of rain.
Winds: North to northwesterly 25 to 30 knots turning westerly 15 to 25 knots in the early morning.
Seas: 2.5 to 3 metres, decreasing to 1 to 2 metres during the morning.
Swell: Southwesterly 3 to 4 metres, tending westerly 3 to 4 metres during the morning.
Forecast for Sunday, 14 June
Weather: Cloudy.
Winds: West to southwesterly 15 to 20 knots becoming variable below 10 knots during the morning then becoming north to northeasterly 10 to 15 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 4 to 5 metres.

Forecast for Thursday, 11 June
Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm in the evening.
Winds: Northerly 10 to 15 knots turning northeasterly in the evening. Winds reaching up to 20 knots offshore in the late evening.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Friday, 12 June
Weather: Cloudy. 95% chance of rain.
Winds: Northerly 15 to 25 knots increasing to 20 to 30 knots in the morning then tending northwesterly 20 to 25 knots in the late evening.
Seas: 1 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 13 June
Weather: Partly cloudy. 95% chance of rain.
Winds: Northwest to southwesterly 15 to 20 knots tending southwesterly before dawn then turning south to southeasterly below 10 knots in the late afternoon.
Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
Swell: Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Sunday, 14 June
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming northeasterly 10 to 15 knots during the morning then decreasing to about 10 knots during the evening.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.

Forecast for Thursday, 11 June
Weather: Partly cloudy.
Winds: North to northeasterly 10 to 15 knots, reaching up to 20 knots west of Kangaroo Island in the late evening.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres.
Forecast for Friday, 12 June
Weather: Cloudy. 95% chance of showers west of Kangaroo Island, 60% chance elsewhere.
Winds: North to northeasterly 15 to 25 knots tending north to northwesterly 20 to 25 knots during the day. Winds reaching up to 30 knots during the day.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 3 metres, increasing to 3 to 4 metres by early evening.
Forecast for Saturday, 13 June
Weather: Partly cloudy. 95% chance of rain.
Winds: North to northwesterly 20 to 30 knots shifting southwesterly 15 to 20 knots during the morning.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning, then decreasing to 1 metre by early evening.
Swell: Southwesterly 3 to 4 metres.
Forecast for Sunday, 14 June
Weather: Cloudy.
Winds: Variable below 10 knots becoming north to northeasterly 10 to 15 knots during the day.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres.

Forecast for Thursday, 11 June
Weather: Cloudy.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the evening. Winds reaching up to 20 knots south of Cowell to Wallaroo in the late evening.
Seas: Below 1 metre.
Swell: South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Forecast for Friday, 12 June
Weather: Partly cloudy.
Winds: Northeasterly 15 to 20 knots turning northerly 15 to 25 knots before dawn. Winds reaching up to 30 knots during the day.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Forecast for Saturday, 13 June
Weather: Cloudy. Near 100% chance of rain.
Winds: North to northwesterly 20 to 30 knots decreasing to 15 to 25 knots before dawn then shifting south to southwesterly 15 to 20 knots during the morning.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Forecast for Sunday, 14 June
Weather: Partly cloudy.
Winds: Southeasterly 10 to 15 knots tending easterly during the morning then tending northeasterly during the evening.
Seas: Below 1 metre.
Swell: South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.

Forecast for Thursday, 11 June
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres.
Forecast for Friday, 12 June
Weather: Cloudy.
Winds: Northeasterly 15 to 20 knots tending northerly 15 to 25 knots in the morning. Winds reaching up to 30 knots south of Salt Creek during the afternoon and evening.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres around midday.
Swell: Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres inshore.
Forecast for Saturday, 13 June
Weather: Cloudy. Near 100% chance of rain.
Winds: Northerly 20 to 30 knots shifting southwesterly 15 to 20 knots in the morning.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres south of Salt Creek.
Forecast for Sunday, 14 June
Weather: Partly cloudy.
Winds: Variable below 10 knots becoming northeasterly 10 to 15 knots during the day.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres.

Forecast for Thursday, 11 June
Weather: Cloudy. The chance of a thunderstorm in the evening.
Winds: Northeasterly 15 to 20 knots.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 12 June
Weather: Cloudy. 90% chance of showers.
Winds: North to northeasterly 15 to 20 knots, reaching up to 30 knots during the morning and early afternoon. Winds turning northwesterly 15 to 25 knots in the afternoon.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 13 June
Weather: Partly cloudy. Near 100% chance of rain.
Winds: Southwesterly 15 to 20 knots turning south to southeasterly below 10 knots during the day.
Seas: 1 to 2 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 3 metres.
Forecast for Sunday, 14 June
Weather: Partly cloudy. The chance of a thunderstorm in the evening.
Winds: East to northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Cape Willoughby
▲ N
6 kn NNE
· 16 °C
Warnings
No warnings within 100 km.
State Wide
Marine
View all SA warnings
Temperature
Mouth Flat Beach
16 °C 17 °C 1pm 8 °C 2am
↓ Cooling
Now: 16 °C
Tides
Mouth Flat Beach
12:42pm 1.29m 7:55pm 0.62m
↓ Falling
Current: 0.62m
Weather Now for Mouth Flat Beach
Partly cloudy.
16 °C
Feels like 15 °C
Wind
6 kn NNE
Humidity
87%
Pressure
1026 hPa
At Cape Willoughby
Nearby Wind
50 km radius
N S W E 6 kn Cape Willoughby Calm Kingscote Calm Second Valley
Mouth Flat Beach
6 kn NNE
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6 kn NNE
 16°
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 12°
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Central Macdonald
Calm
15°
Sun
7:25am rise 5:11pm set
9 h 45 m of daylight
Now: 7:45pm
30 seconds less than yesterday
Moon
2:47am rise 1:55pm set
18% illuminated
Waning Crescent
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