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BoM Postans Marine Weather Forecast

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Mean Sea Level Prognosis Charts

Other WA Coastal Waters Forecasts

Forecast for Tuesday, 15 September
Weather: Cloudy.
Winds: Easterly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Cloud clearing.
Winds: Northeasterly 15 to 20 knots.
Seas: 1 to 2 metres.
Swell: Southwesterly 2 to 3 metres. Easterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.
Forecast for Thursday, 17 September
Weather: Sunny.
Winds: Northeasterly 15 to 20 knots tending northerly during the morning then tending northwest to southwesterly 10 to 15 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: Southwesterly 1.5 to 2.5 metres. Easterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.

Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: East to southeasterly 10 to 15 knots tending south to southeasterly in the middle of the day then tending east to southeasterly in the evening. Winds reaching up to 20 knots offshore during the morning and again in the evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Sunny.
Winds: Easterly 10 to 15 knots tending northeasterly in the morning then becoming variable about 10 knots in the middle of the day.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2.5 metres.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots turning north to northwesterly 15 to 20 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.

Forecast for Tuesday, 15 September
Weather: Cloudy.
Winds: Easterly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Cloud clearing.
Winds: Northeasterly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2 to 3 metres. East to northeasterly around 1 metre.
Forecast for Thursday, 17 September
Weather: Sunny.
Winds: Northeasterly 15 to 25 knots turning northerly during the day.
Seas: 1 to 2 metres.
Swell: Southwesterly 1.5 to 2 metres. East to northeasterly around 1 metre.

Forecast for Tuesday, 15 September
Weather: Cloudy.
Winds: Easterly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Partly cloudy.
Winds: Easterly 20 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Thursday, 17 September
Weather: Sunny.
Winds: Northeasterly 15 to 25 knots.
Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell: South to southwesterly 1.5 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Mostly sunny.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots south of Denham in the afternoon.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Denham.
Swell: Southwesterly 2 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Partly cloudy.
Winds: South to southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres.
Forecast for Thursday, 17 September
Weather: Cloud clearing.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: Southerly 15 to 20 knots.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Sunny.
Winds: South to southeasterly 10 to 15 knots, reaching up to 20 knots offshore north of Geraldton early in the morning. Winds tending east to southeasterly in the early morning then turning south to southwesterly below 10 knots during the morning.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming northwesterly 10 to 15 knots during the afternoon.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: South to southeasterly 15 to 20 knots tending east to southeasterly 10 to 15 knots in the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Sunny.
Winds: Easterly 10 to 15 knots turning south to southeasterly below 10 knots in the middle of the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres, decreasing to 2 metres by early evening.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming northwesterly 10 to 15 knots during the morning.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Tuesday, 15 September
Weather: Mostly sunny.
Winds: Northeast to southeasterly 10 to 15 knots, reaching up to 25 knots offshore east of Cape Leeuwin during the afternoon and evening.
Seas: Around 1 metre, increasing to 1 to 2 metres offshore east of Cape Leeuwin.
Swell: Southwesterly 3 metres. East to southeasterly around 1 metre offshore.
Forecast for Wednesday, 16 September
Weather: Sunny.
Winds: East to northeasterly 10 to 15 knots, reaching up to 20 knots offshore east of Cape Leeuwin during the morning. Winds becoming variable about 10 knots in the middle of the day then becoming northeast to southeasterly 10 to 15 knots in the late evening.
Seas: 1 to 2 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2 to 3 metres. East to southeasterly around 1 metre.
Forecast for Thursday, 17 September
Weather: Mostly sunny.
Winds: North to northeasterly 10 to 15 knots turning northwesterly 15 to 20 knots during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres. East to southeasterly around 1 metre.

Forecast for Tuesday, 15 September
Weather: Mostly sunny.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots offshore north of Coral Bay in the evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Wednesday, 16 September
Weather: Mostly sunny.
Winds: Southerly 15 to 20 knots.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southwesterly 2 to 2.5 metres.
Forecast for Thursday, 17 September
Weather: Mostly sunny.
Winds: Southerly 10 to 15 knots.
Seas: Below 1 metre.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Tuesday, 15 September
Weather: Cloud clearing.
Winds: Variable about 10 knots.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Forecast for Wednesday, 16 September
Weather: Mostly sunny.
Winds: Variable about 10 knots becoming southeast to southwesterly 10 to 15 knots in the early morning then becoming variable about 10 knots in the morning.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Forecast for Thursday, 17 September
Weather: Sunny.
Winds: Southeast to southwesterly 10 to 15 knots tending northeast to southeasterly during the morning then tending northwest to northeasterly during the afternoon.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.

Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: East to southeasterly 15 to 20 knots tending south to southeasterly in the middle of the day then tending east to southeasterly in the evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 2.5 to 3 metres.
Forecast for Wednesday, 16 September
Weather: Sunny.
Winds: Easterly 10 to 15 knots turning south to southeasterly below 10 knots in the middle of the day then becoming east to southeasterly in the late evening.
Seas: Around 1 metre, decreasing below 0.5 metres during the afternoon.
Swell: Southwesterly 2 to 3 metres, decreasing to 2 metres by early evening.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Northeasterly 10 to 15 knots turning northwesterly during the morning.
Seas: Around 1 metre.
Swell: Southwesterly 1.5 to 2 metres.

Forecast for Tuesday, 15 September
Weather: Mostly sunny.
Winds: South to southwesterly 10 to 15 knots tending west to southwesterly in the middle of the day. Winds reaching up to 20 knots west of Port Hedland during the afternoon and evening.
Seas: Around 1 metre, increasing to 1 to 1.5 metres west of Port Hedland during the afternoon.
Swell: Westerly below 1 metre.
Forecast for Wednesday, 16 September
Weather: Partly cloudy.
Winds: Southeast to southwesterly 15 to 20 knots tending northeast to southeasterly in the morning then becoming variable about 10 knots in the late evening.
Seas: 1 to 1.5 metres, decreasing to 1 metre around midday.
Swell: Westerly below 1 metre.
Forecast for Thursday, 17 September
Weather: Mostly sunny.
Winds: Variable about 10 knots becoming northeast to southeasterly 15 to 20 knots during the morning then tending northwest to northeasterly 10 to 15 knots during the evening.
Seas: Around 1 metre.
Swell: Westerly below 1 metre.

Forecast for Tuesday, 15 September
Weather: Sunny.
Winds: Southerly 15 to 20 knots turning southwesterly in the late morning.
Seas: 1 to 1.5 metres.
Swell: West to southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Forecast for Wednesday, 16 September
Weather: Mostly sunny.
Winds: South to southwesterly 10 to 15 knots, reaching up to 20 knots offshore early in the morning. Winds tending south to southeasterly in the morning then turning southwesterly in the late morning.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell: West to southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres about offshore western waters.
Forecast for Thursday, 17 September
Weather: Sunny.
Winds: Southeast to southwesterly 10 to 15 knots becoming variable about 10 knots during the day.
Seas: Below 1 metre.
Swell: West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.

Forecast for Tuesday, 15 September
Weather: Partly cloudy.
Winds: Variable about 10 knots becoming northwesterly 10 to 15 knots in the early afternoon then becoming variable about 10 knots in the evening.
Seas: Below 1 metre.
Swell: Westerly around 1 metre.
Forecast for Wednesday, 16 September
Weather: Mostly sunny.
Winds: Northwest to northeasterly 10 to 15 knots tending northwest to southwesterly in the early afternoon then becoming variable about 10 knots in the evening.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Forecast for Thursday, 17 September
Weather: Mostly sunny.
Winds: South to southeasterly 10 to 15 knots tending northeast to southeasterly during the morning then tending northwest to southwesterly during the day.
Seas: Below 1 metre.
Swell: Westerly below 1 metre.
Colpoys Point
▲ N
9 kn E
· 24 °C
Warnings
No warnings within 100 km.
State Wide
View all WA warnings
Temperature
Postans
24 °C 12 °C 5am 26 °C 2pm
↑ Warming
Now: 24 °C
Tides
Kwinana Beach
10:31am 0.53m 3:25pm 0.49m
↓ Falling
Current: 0.52m
Weather Now for Postans
Sunny.
24 °C
Feels like 22 °C
Wind
9 kn E
Humidity
56%
Pressure
1023 hPa
At Garden Island
Nearby Wind
50 km radius
N S W E 11 kn East Fremantle 12 kn Perth Airport 7 kn Mandurah 9 kn Rottnest Island 4 kn Hillarys
Postans
9 kn E
Recent Locations
Postans
9 kn E
Enfield
14 kn SE
 20°
Coppabella -
Oaky Park -
Lower Mangrove
7 kn SE
 23°
Licola
18 kn SW
Oak Valley
Calm
28°
Sun
6:16am rise 6:09pm set
11 h 52 m of daylight
Now: 12:32pm
116 seconds more than yesterday
Moon
8:13amrise 10:31pmset
18% illuminated
Waxing Crescent
Live Weather
Nearby
Colpoys Point, WA
9 kn E
Safety Bay, WA
7 kn E
Garden Island, WA
8 kn E
 24°
Jandakot, WA
11 kn ENE
 24°
East Fremantle, WA
11 kn ESE
Melville Water, WA
8 kn SSE
Swanbourne, WA
7 kn ESE
 23°
Windiest in Australia
Wilsons Promontory, VIC
36 kn WSW
 10°
Most Windless in Australia
Mount Read, TAS
Calm
-1°
Hottest in Australia
Port Hedland, WA
12 kn S
 39°
Coldest in Australia
Mount Wellington, TAS
26 kn WSW
 -2°
Wettest in Australia
Warra, TAS
 6.2 mm
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