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BoM Altona Marine Weather Forecast

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Forecast for Thursday, 10 September
Weather: Clear.
Winds: Easterly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 3 to 4 metres.
Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots, reaching up to 20 knots in the west early in the morning. Winds turning northeasterly during the day.
Seas: 1 to 1.5 metres, decreasing to 1 metre around midday.
Swell: Southwesterly 3 metres.
Forecast for Saturday, 12 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots turning northerly during the day.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 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 during the morning.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Thursday, 10 September
Weather: Partly cloudy.
Winds: Easterly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2.5 metres. East to southeasterly around 1 metre.
Forecast for Friday, 11 September
Weather: Partly cloudy. 70% chance of showers.
Winds: East to northeasterly 15 to 20 knots.
Seas: 1 to 2 metres.
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 inshore.
Winds: Northeasterly 15 to 20 knots turning northerly during the morning.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
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: North to northwesterly 15 to 20 knots shifting southwesterly during the morning then becoming variable about 10 knots during the afternoon.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: Southeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southeast to southwesterly below 0.5 metres.
Forecast for Friday, 11 September
Weather: Sunny.
Winds: Easterly 10 to 15 knots becoming variable about 10 knots in the early morning.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
Forecast for Saturday, 12 September
Weather: Sunny.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the late evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 0.5 metres.
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 10 to 15 knots during the afternoon.
Seas: Around 1 metre.
Swell: West to southwesterly below 0.5 metres.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: Southeasterly 10 to 15 knots, reaching up to 20 knots inshore.
Seas: Around 1 metre.
Swell: West to southwesterly below 1 metre, increasing to 1 to 2 metres through the Backstairs Passage.
Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots decreasing to about 10 knots in the middle of the day.
Seas: Around 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. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: Northerly 15 to 20 knots turning westerly during the day.
Seas: Around 1 metre.
Swell: West to southwesterly around 1 metre.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: Southeasterly 10 to 15 knots.
Seas: Below 0.5 metres, increasing to below 1 metre north of Port MacDonnell.
Swell: Southwesterly 4 metres.
Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: East to southeasterly 10 to 15 knots tending east to northeasterly below 10 knots during the afternoon and evening.
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 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 and afternoon.
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 Thursday, 10 September
Weather: Clear.
Winds: Easterly 10 to 15 knots, reaching up to 20 knots offshore.
Seas: Around 1 metre, increasing to 1.5 metres offshore.
Swell: Southwesterly 3 metres.
Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: East to northeasterly 10 to 15 knots, reaching up to 20 knots offshore early in the morning. Winds becoming variable about 10 knots in the middle of the day then becoming easterly 10 to 15 knots in the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Saturday, 12 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots tending northerly in 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: Mostly sunny. 80% chance of showers. The chance of a thunderstorm in the morning.
Winds: North to northwesterly 15 to 20 knots turning west to southwesterly 10 to 15 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 2 metres.

Forecast for Thursday, 10 September
Weather: Mostly clear.
Winds: Easterly 10 to 15 knots, reaching up to 20 knots west of Kangaroo Island.
Seas: Around 1 metre.
Swell: Southwesterly 4 metres.
Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots turning northeasterly during the day.
Seas: Around 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning.
Forecast for Saturday, 12 September
Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots turning northerly during the day.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
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: Southwesterly 2 to 2.5 metres.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: East to southeasterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo.
Seas: Around 1 metre.
Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Cowell to Wallaroo.
Forecast for Friday, 11 September
Weather: Mostly sunny.
Winds: Easterly 10 to 15 knots becoming variable about 10 knots in the middle of the day.
Seas: Around 1 metre.
Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 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.
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. 50% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: North to northwesterly 15 to 20 knots turning west to southwesterly during the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres near the Yorke Peninsula coast.
Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: Southeasterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 4 metres.
Forecast for Friday, 11 September
Weather: Sunny.
Winds: East to southeasterly about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning.
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. 80% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: North to northeasterly 15 to 20 knots shifting westerly 10 to 15 knots during the afternoon.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Salt Creek during the morning.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Thursday, 10 September
Weather: Clear.
Winds: Easterly 10 to 15 knots, reaching up to 20 knots south of Streaky Bay.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Streaky Bay.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Friday, 11 September
Weather: Partly cloudy.
Winds: East to northeasterly 10 to 15 knots, reaching up to 20 knots south of Streaky Bay early in the morning. Winds 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: 1 to 1.5 metres, decreasing below 1 metre during the morning.
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: The chance of a thunderstorm in the morning. Sunny day.
Winds: Northerly 15 to 20 knots shifting southwesterly 10 to 15 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres.
Mount Crawford
▲ N
11 kn E
· 8 °C
Warnings
No warnings within 100 km.
State Wide
View all SA warnings
Temperature
Altona
8 °C 19 °C 3pm 7 °C 6am
↓ Cooling
Now: 8 °C
Tides
Middle Beach
11:45pm 0.31m 5:26am 2.16m
↑ Rising
Current: 0.35m
Weather Now for Altona
Sunny.
8 °C
Feels like 2 °C
Wind
11 kn E
Humidity
67%
Pressure
1033 hPa
At Mount Crawford
Nearby Wind
50 km radius
N S W E 3 kn Roseworthy 5 kn Edinburgh Airport 4 kn Mount Lofty
Altona
11 kn E
Recent Locations
Altona
11 kn E
 8°
Green Head (Surf Spot) -
Grenfell -
Dee Why Beach (Surf Spot)
5 kn W
Booby Island
Calm
25°
Eli Waters
7 kn SE
 18°
Lower Chittering
7 kn E
 17°
Sun
6:20am rise 6:02pm set
11 h 42 m of daylight
Now: 12:18am
127 seconds more than yesterday
Moon
6:14amrise 6:21pmset
0% illuminated
New Moon
Live Weather
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11 kn E
 8°
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 10°
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 9°
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 6°
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8 kn SE
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4 kn SE
 10°
Windiest in Australia
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42 kn NW
 11°
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Calm
14°
Hottest in Australia
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 29°
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3 kn WSW
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Wettest in Australia
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 6.8 mm
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