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BoM Square Mile Marine Weather Forecast

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Mean Sea Level Prognosis Charts

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Other SA Coastal Waters Forecasts

Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots turning northerly during the day. Winds reaching up to 20 knots inshore in the late evening.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the morning.
Winds: North to northwesterly 15 to 20 knots turning westerly during the morning.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Partly cloudy. 50% chance of showers in the late morning and afternoon.
Winds: East to northeasterly 15 to 20 knots.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore.
Swell: Southwesterly 1.5 to 2.5 metres. East to southeasterly around 1 metre.
Forecast for Saturday, 12 September
Weather: Mostly sunny day. The chance of a thunderstorm in the evening, with possible squalls above 40 knots inshore.
Winds: North to northeasterly 15 to 20 knots tending north to northwesterly 10 to 15 knots in the middle of the day then tending north to northeasterly 15 to 20 knots in the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 1.5 to 2.5 metres.
Forecast for Sunday, 13 September
Weather: The chance of a thunderstorm in the morning. Sunny day.
Winds: Southwesterly 15 to 20 knots becoming variable about 10 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Friday, 11 September
Weather: Sunny.
Winds: East to northeasterly about 10 knots becoming south to southeasterly in the middle of the day then becoming east to northeasterly in the evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: North to northeasterly about 10 knots tending east to northeasterly 10 to 15 knots in the late afternoon then tending north to northeasterly in the late evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly 10 to 15 knots during the day.
Seas: Around 1 metre.
Swell: West to southwesterly below 0.5 metres.

Forecast for Friday, 11 September
Weather: Sunny.
Winds: East to northeasterly 10 to 15 knots becoming east to southeasterly about 10 knots in the middle of the day.
Seas: Below 1 metre.
Swell: West to southwesterly below 1 metre, increasing to 1 to 2 metres through the Backstairs Passage.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the morning.
Seas: Below 1 metre.
Swell: West to southwesterly around 1 metre.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly during the morning.
Seas: 1 to 1.5 metres.
Swell: West to southwesterly around 1 metre.

Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 4 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly about 10 knots tending northerly 10 to 15 knots in the early morning.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning west to northwesterly 10 to 15 knots during the afternoon.
Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming easterly 10 to 15 knots in the evening.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 12 September
Weather: Partly cloudy.
Winds: East to northeasterly 10 to 15 knots turning northerly during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres, decreasing to 2 metres by early evening.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: North to northwesterly 10 to 15 knots turning westerly 15 to 20 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 2 metres.

Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly during the morning.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Sunny.
Winds: East to northeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day.
Seas: Below 1 metre.
Swell: South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots turning northerly in the late evening. Winds reaching up to 20 knots near the Yorke Peninsula coast in the late 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 Sunday, 13 September
Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots shifting west to southwesterly during the morning.
Seas: 1 to 1.5 metres.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.

Forecast for Friday, 11 September
Weather: Sunny.
Winds: East to southeasterly about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres.
Forecast for Sunday, 13 September
Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northwest to northeasterly 15 to 20 knots becoming northwesterly 10 to 15 knots during the day then tending westerly during the afternoon.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Salt Creek.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming east to southeasterly 10 to 15 knots in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: East to northeasterly 10 to 15 knots turning northerly during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Sunday, 13 September
Weather: Mostly sunny. 50% chance of showers. The chance of a thunderstorm in the morning.
Winds: North to northwesterly 10 to 15 knots shifting southwesterly during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2 metres.
Mount Gambier
▲ N
6 kn E
· 14 °C
Warnings
No warnings within 100 km.
State Wide
View all SA warnings
Temperature
Square Mile
14 °C 2 °C 6am 19 °C 3pm
↑ Warming
Now: 14 °C
Tides
Racecourse Bay
5:45am 0.35m 12:32pm 1.00m
↑ Rising
Current: 0.81m
Weather Now for Square Mile
Sunny.
14 °C
Feels like 12 °C
Wind
6 kn E
Humidity
80%
Pressure
1035 hPa
At Mount Gambier
Nearby Wind
50 km radius
Wind Observations Offline
Recent Locations
Square Mile
6 kn E
 14°
Sun
6:14am rise 5:53pm set
11 h 39 m of daylight
Now: 10:05am
143 seconds more than yesterday
Moon
6:08amrise 6:13pmset
0% illuminated
New Moon
Live Weather
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 14°
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 12°
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33 kn WSW
 6°
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Calm
25°
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9 kn SW
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Wettest in Australia
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 4.4 mm
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