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BoM Onslow Marine Weather Forecast

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Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: Westerly 25 to 30 knots.
Seas: 3 metres.
Swell: Westerly 1.5 to 2.5 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Sunday, 20 September
Weather: Cloudy. 50% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds tending southeast to southwesterly 15 to 20 knots in the morning then tending northeast to southeasterly 10 to 15 knots in the early afternoon.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre around midday.
Swell: Westerly 2.5 to 4 metres, tending southwesterly 2.5 to 4 metres during the morning.
Forecast for Monday, 21 September
Weather: Partly cloudy.
Winds: North to northeasterly 15 to 20 knots shifting south to southwesterly 10 to 15 knots in the afternoon.
Seas: Around 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres by early evening.
Forecast for Tuesday, 22 September
Weather: Cloudy. 50% chance of showers.
Winds: Southeasterly below 10 knots increasing to 10 to 15 knots during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.

Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: Westerly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Westerly 4 metres.
Forecast for Sunday, 20 September
Weather: Partly cloudy.
Winds: West to southwesterly 10 to 15 knots tending south to southwesterly before dawn then becoming variable below 10 knots in the morning.
Seas: Around 1 metre, decreasing below 0.5 metres around midday.
Swell: West to southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Forecast for Monday, 21 September
Weather: Partly cloudy.
Winds: Variable about 10 knots.
Seas: Below 0.5 metres.
Swell: Southwesterly 1.5 to 2.5 metres inshore, increasing to 2.5 to 4 metres offshore.
Forecast for Tuesday, 22 September
Weather: Partly cloudy.
Winds: South to southeasterly about 10 knots tending southwesterly 10 to 15 knots during the day then tending southerly during the evening.
Seas: Below 1 metre.
Swell: Southwesterly 2 to 3 metres.

Forecast for Saturday, 19 September
Weather: Partly cloudy.
Winds: Westerly 20 to 30 knots.
Seas: 2 to 2.5 metres.
Swell: Southwesterly 1.5 to 2.5 metres, increasing to 2 to 4 metres west of Esperance.
Forecast for Sunday, 20 September
Weather: Partly cloudy. 70% chance of showers.
Winds: West to southwesterly 15 to 25 knots, reaching up to 30 knots east of Hopetoun early in the morning. Winds shifting east to southeasterly 10 to 15 knots in the late afternoon.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre during the afternoon.
Swell: Southwesterly 2 to 4 metres, decreasing to 2 to 3 metres during the morning, then increasing to 3 to 4 metres during the afternoon.
Forecast for Monday, 21 September
Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots turning northeasterly 15 to 20 knots early in the morning.
Seas: Around 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres by early evening.
Forecast for Tuesday, 22 September
Weather: Partly cloudy.
Winds: Northeast to southeasterly 10 to 15 knots tending southeast to southwesterly during the day.
Seas: Around 1 metre, increasing to 1 to 1.5 metres east of Esperance.
Swell: Southwesterly 2.5 to 3 metres. East to northeasterly around 1 metre.

Forecast for Saturday, 19 September
Weather: Partly cloudy. The chance of a thunderstorm.
Winds: South to southwesterly 15 to 25 knots, reaching up to 30 knots east of Eyre in the evening. Winds tending west to southwesterly in the late evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres west of Eyre.
Forecast for Sunday, 20 September
Weather: Partly cloudy.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots west of Eyre early in the morning. Winds turning south to southeasterly 15 to 20 knots in the late afternoon.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Forecast for Monday, 21 September
Weather: Partly cloudy.
Winds: Southeasterly 10 to 15 knots turning east to northeasterly 15 to 20 knots early in the morning.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southwesterly 2 to 3 metres.
Forecast for Tuesday, 22 September
Weather: Mostly sunny.
Winds: Northeasterly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres.

Forecast for Saturday, 19 September
Weather: Mostly clear.
Winds: Southerly 10 to 15 knots, reaching up to 20 knots north of Denham in the evening.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 3 metres inshore, increasing to 4 metres offshore south of Denham.
Forecast for Sunday, 20 September
Weather: Partly cloudy.
Winds: South to southeasterly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore south of Denham.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: Southerly 15 to 20 knots.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres.
Forecast for Tuesday, 22 September
Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres.

Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: South to southwesterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.
Forecast for Sunday, 20 September
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming southerly 10 to 15 knots in the early afternoon. Winds reaching up to 20 knots inshore in the late evening.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 2 to 3 metres during the morning.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: Southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the morning.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Geraldton during the afternoon.
Swell: Southwesterly 2 to 3 metres.
Forecast for Tuesday, 22 September
Weather: Mostly sunny.
Winds: Southerly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 3 metres.

Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: Southwesterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 4 metres.
Forecast for Sunday, 20 September
Weather: Partly cloudy.
Winds: Southwesterly 10 to 15 knots decreasing to below 10 knots in the early morning then becoming south to southeasterly in the early afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Monday, 21 September
Weather: Mostly sunny.
Winds: Southeasterly about 10 knots tending southerly 15 to 20 knots in the middle of the day.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Tuesday, 22 September
Weather: Partly cloudy.
Winds: South to southwesterly 10 to 15 knots decreasing to about 10 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 2.5 to 3 metres.

Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: Westerly 15 to 20 knots, reaching up to 30 knots east of Cape Leeuwin in the evening.
Seas: 1.5 metres, increasing to 2 to 2.5 metres east of Cape Leeuwin.
Swell: Westerly 3 metres inshore, increasing to 4 metres offshore.
Forecast for Sunday, 20 September
Weather: Cloudy. 50% chance of showers in the morning.
Winds: Southwesterly 15 to 20 knots turning south to southeasterly 10 to 15 knots early in the morning then tending northeast to southeasterly in the late afternoon.
Seas: 1 to 2 metres, decreasing below 1 metre during the morning.
Swell: Westerly 3 to 4 metres, tending southwesterly 3 to 4 metres during the morning.
Forecast for Monday, 21 September
Weather: Cloudy.
Winds: North to northeasterly 10 to 15 knots turning west to northwesterly early in the morning then becoming variable about 10 knots in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Forecast for Tuesday, 22 September
Weather: Cloudy. 50% chance of showers.
Winds: South to southeasterly below 10 knots increasing to 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.

Forecast for Saturday, 19 September
Weather: Clear.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots inshore in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres inshore.
Swell: Southwesterly 3 metres.
Forecast for Sunday, 20 September
Weather: Sunny.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots offshore south of Coral Bay in the evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: Southerly 15 to 25 knots.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres around midday.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Tuesday, 22 September
Weather: Sunny.
Winds: Southerly 15 to 25 knots.
Seas: 1 to 2 metres.
Swell: Southwesterly 2 to 2.5 metres.

Forecast for Saturday, 19 September
Weather: Clear.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Northeasterly around 1 metre.
Forecast for Sunday, 20 September
Weather: Mostly sunny.
Winds: Variable about 10 knots.
Seas: Below 0.5 metres.
Swell: Northeasterly around 1 metre.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Northeasterly around 1 metre.
Forecast for Tuesday, 22 September
Weather: Sunny.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.

Forecast for Saturday, 19 September
Weather: Cloudy.
Winds: Westerly 10 to 15 knots.
Seas: Around 1 metre.
Swell: Southwesterly 4 to 5 metres.
Forecast for Sunday, 20 September
Weather: Cloudy.
Winds: Westerly 10 to 15 knots shifting south to southeasterly below 10 knots in the early morning.
Seas: Around 1 metre, decreasing below 0.5 metres around midday.
Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Monday, 21 September
Weather: Partly cloudy.
Winds: South to southeasterly about 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 3 metres.
Forecast for Tuesday, 22 September
Weather: Partly cloudy.
Winds: South to southwesterly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 2.5 to 3 metres.

Forecast for Saturday, 19 September
Weather: Clear.
Winds: West to northwesterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Forecast for Sunday, 20 September
Weather: Sunny.
Winds: West to southwesterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming west to northwesterly 10 to 15 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Westerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: West to southwesterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming westerly 10 to 15 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Westerly around 1 metre.
Forecast for Tuesday, 22 September
Weather: Mostly sunny.
Winds: Southwesterly 10 to 15 knots becoming variable about 10 knots during the morning then becoming west to northwesterly 10 to 15 knots during the afternoon.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.

Forecast for Saturday, 19 September
Weather: Clear.
Winds: West to southwesterly 10 to 15 knots, reaching up to 20 knots offshore west of Onslow in the late evening.
Seas: Below 1 metre.
Swell: West to southwesterly below 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
Forecast for Sunday, 20 September
Weather: Sunny.
Winds: South to southwesterly 10 to 15 knots, reaching up to 20 knots offshore west of Barrow Island during the morning. Winds tending west to southwesterly in the middle of the day then tending south to southwesterly in the late evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre around midday.
Swell: West to southwesterly below 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: South to southwesterly 10 to 15 knots tending west to southwesterly in the middle of the day.
Seas: Around 1 metre.
Swell: West to southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres about offshore western waters.
Forecast for Tuesday, 22 September
Weather: Sunny.
Winds: South to southwesterly 15 to 20 knots tending west to southwesterly 10 to 15 knots during the afternoon.
Seas: Around 1 metre.
Swell: West to southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres about offshore western waters.

Forecast for Saturday, 19 September
Weather: Mostly clear.
Winds: West to southwesterly about 10 knots.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Forecast for Sunday, 20 September
Weather: Mostly sunny.
Winds: Variable about 10 knots becoming south to southwesterly 10 to 15 knots in the early morning then tending northwest to southwesterly in the early afternoon.
Seas: Below 1 metre.
Swell: Westerly around 1 metre.
Forecast for Monday, 21 September
Weather: Sunny.
Winds: Variable about 10 knots becoming westerly 10 to 15 knots in the early afternoon.
Seas: Below 1 metre.
Swell: Westerly around 1 metre.
Forecast for Tuesday, 22 September
Weather: Mostly sunny.
Winds: Variable about 10 knots becoming west to northwesterly 10 to 15 knots during the afternoon then decreasing to about 10 knots during the evening.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Onslow Airport
▲ N
12 kn SSW
· 22 °C
Warnings
No warnings within 100 km.
State Wide
Marine
View all WA warnings
Temperature
Onslow
22 °C 36 °C 2pm 19 °C 6am
↓ Cooling
Now: 22 °C
Tides
Onslow
7:39pm 1.25m 2:54am 2.03m
↑ Rising
Current: 1.91m
Weather Now for Onslow
Sunny.
22 °C
Feels like 19 °C
Wind
12 kn SSW
Humidity
59%
Pressure
1020 hPa
At Onslow Airport
Nearby Wind
50 km radius
N S W E 17 kn Thevenard Island
Onslow
12 kn SSW
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Onslow
12 kn SSW
 22°
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 14°
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6 kn NW
 19°
Cangai
3 kn WNW
 10°
Sun
6:11am rise 6:15pm set
12 h 3 m of daylight
Now: 1:04am
74 seconds more than yesterday
Moon
12:29pmrise 1:42amset
58% illuminated
First Quarter
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Onslow Airport, WA
12 kn SSW
 22°
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 5.0 mm
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