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BoM Cape Portland Marine Weather Forecast

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Forecast for Monday, 10 August
Weather: Cloudy. Near 100% chance of rain.
Winds: Southerly 15 to 25 knots, reaching up to 30 knots about Banks Strait in the late afternoon. Winds turning southwesterly 15 to 20 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres about Banks Strait.
Swell: East to northeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
Forecast for Tuesday, 11 August
Weather: Partly cloudy.
Winds: West to southwesterly 15 to 20 knots tending west to northwesterly 15 to 25 knots during the day.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres around midday.
Swell: Northwest to southwesterly around 1 metre. Easterly around 1 metre.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 95% chance of showers.
Winds: Northwesterly 15 to 25 knots tending westerly 20 to 30 knots in the morning then decreasing to 15 to 25 knots in the late afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Northwest to southwesterly around 1 metre.
Forecast for Thursday, 13 August
Weather: Mostly sunny.
Winds: Westerly 15 to 25 knots.
Seas: 1.5 to 2 metres.
Swell: Northwest to southwesterly around 1 metre.

Forecast for Monday, 10 August
Weather: Partly cloudy.
Winds: Southwesterly 15 to 20 knots, reaching up to 25 knots offshore in the evening.
Seas: Around 1 metre, increasing to 1 to 2 metres offshore.
Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre by early evening. Westerly below 1 metre inshore, increasing to around 1 metre offshore.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 60% chance of showers.
Winds: West to southwesterly 15 to 20 knots, reaching up to 30 knots offshore during the morning. Winds tending west to northwesterly in the late morning and afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Westerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 95% chance of showers.
Winds: Northwesterly 20 to 30 knots turning westerly in the morning.
Seas: 2 to 3 metres.
Swell: Westerly below 1 metre, increasing to 1 to 1.5 metres during the morning.
Forecast for Thursday, 13 August
Weather: Partly cloudy. 50% chance of showers.
Winds: Westerly 20 to 30 knots.
Seas: 1.5 to 2.5 metres.
Swell: Westerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.

Forecast for Monday, 10 August
Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon. Winds turning southwesterly 10 to 15 knots in the late evening.
Seas: 1 to 1.5 metres.
Swell: Southwesterly 3 metres.
Forecast for Tuesday, 11 August
Weather: Cloudy. Near 100% chance of showers.
Winds: West to southwesterly 15 to 20 knots turning northwesterly 15 to 25 knots during the morning. Winds reaching up to 30 knots in the late evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Swell: Southwesterly 3 metres, tending westerly 3 metres during the afternoon.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 95% chance of showers, with possible small hail inshore in the morning and afternoon.
Winds: Westerly 20 to 30 knots decreasing to 20 to 25 knots in the early afternoon then increasing to 20 to 30 knots in the late evening.
Seas: 2 to 2.5 metres.
Swell: Southwesterly 3 to 4 metres, tending westerly 4 metres during the morning, then tending west to southwesterly 4 to 5 metres during the afternoon.
Forecast for Thursday, 13 August
Weather: Partly cloudy. 95% chance of showers.
Winds: Westerly 20 to 30 knots.
Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres during the afternoon or evening.
Swell: Southwesterly 5 metres.

Forecast for Monday, 10 August
Weather: Cloudy. Near 100% chance of rain.
Winds: Southerly 20 to 30 knots, reaching up to 35 knots offshore in the evening.
Seas: 1.5 to 2 metres, increasing to 2.5 to 3 metres by early evening.
Swell: Northeasterly 1.5 to 2.5 metres. South to southwesterly below 1 metre, increasing to 1 to 2 metres later in the evening.
Forecast for Tuesday, 11 August
Weather: Partly cloudy. 60% chance of showers.
Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots offshore during the morning. Winds turning westerly in the morning.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning.
Swell: Southerly 1 to 2 metres, decreasing to around 1 metre later in the evening. Northeasterly 1 to 1.5 metres, tending easterly around 1 metre later in the evening.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 90% chance of showers.
Winds: Northwesterly 20 to 30 knots turning westerly in the late morning.
Seas: 1.5 to 2.5 metres.
Swell: Southerly around 1 metre. Easterly around 1 metre.
Forecast for Thursday, 13 August
Weather: Mostly sunny.
Winds: Westerly 20 to 30 knots.
Seas: 1.5 to 2.5 metres.
Swell: South to southwesterly around 1 metre.

Forecast for Monday, 10 August
Weather: Partly cloudy.
Winds: Southwesterly 20 to 30 knots.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 1 to 2 metres, increasing to 3 metres south of King Island. East to northeasterly around 1 metre.
Forecast for Tuesday, 11 August
Weather: Cloudy. 95% chance of showers.
Winds: West to southwesterly 15 to 25 knots turning northwesterly during the morning. Winds reaching up to 30 knots early in the morning and again in the late evening.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres during the afternoon.
Swell: Southwesterly 2 to 3 metres, tending westerly 2 to 3 metres by early evening, then tending southwesterly 2 to 3 metres later in the evening.
Forecast for Wednesday, 12 August
Weather: Cloudy. 95% chance of showers.
Winds: Northwesterly 25 to 30 knots turning westerly 20 to 30 knots before dawn.
Seas: 2 to 3 metres.
Swell: Southwesterly 2 to 3 metres, increasing to 3 to 5 metres south of King Island during the morning.
Forecast for Thursday, 13 August
Weather: Cloudy. 80% chance of showers.
Winds: Westerly 20 to 30 knots.
Seas: 1.5 to 2.5 metres.
Swell: Southwesterly 2 to 3 metres, increasing to 5 metres south of King Island.

Forecast for Monday, 10 August
Weather: Cloudy. 60% chance of showers.
Winds: Southerly 15 to 25 knots.
Seas: 1 to 2 metres.
Swell: Southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore. Northeasterly 2 metres.
Forecast for Tuesday, 11 August
Weather: Cloudy.
Winds: South to southwesterly 20 to 25 knots, reaching up to 30 knots offshore early in the morning. Winds shifting northwesterly 15 to 20 knots in the late afternoon.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
Swell: Southwesterly around 1 metre inshore, increasing to 1.5 to 2.5 metres offshore. Northeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 70% chance of showers.
Winds: West to northwesterly 15 to 25 knots becoming westerly 20 to 30 knots in the late afternoon then decreasing to 15 to 25 knots in the evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore around midday.
Swell: Southwesterly 2 to 3 metres. Northeasterly 1 to 1.5 metres, tending easterly 1 to 1.5 metres during the morning, then decreasing to around 1 metre during the afternoon.
Forecast for Thursday, 13 August
Weather: Partly cloudy.
Winds: West to northwesterly 15 to 25 knots.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore.
Swell: Southwesterly 2 to 4 metres.

Forecast for Monday, 10 August
Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots, reaching up to 20 knots near Tasman Island in the late evening.
Seas: Around 1 metre.
Swell: Southwesterly 2 to 3 metres. Northeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Forecast for Tuesday, 11 August
Weather: Cloudy. 50% chance of showers.
Winds: Southwesterly 15 to 25 knots turning northwesterly 15 to 20 knots in the afternoon.
Seas: Around 1 metre, increasing to 1 to 2 metres during the morning.
Swell: Southwesterly 2 to 3 metres. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre around midday, then tending east to northeasterly 1 to 1.5 metres during the afternoon.
Forecast for Wednesday, 12 August
Weather: Cloudy. 95% chance of showers.
Winds: North to northwesterly 15 to 25 knots turning westerly 20 to 30 knots during the morning.
Seas: 1 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southwesterly 3 to 5 metres. East to northeasterly 1 to 1.5 metres, decreasing to around 1 metre later in the evening.
Forecast for Thursday, 13 August
Weather: Partly cloudy. 90% chance of showers.
Winds: Westerly 25 to 35 knots.
Seas: 2 to 3 metres, increasing to 2 to 4 metres offshore.
Swell: West to southwesterly 4 to 6 metres.

Forecast for Monday, 10 August
Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots tending southwesterly in the late evening.
Seas: Around 1 metre.
Swell: Southwesterly 3 metres. Easterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Forecast for Tuesday, 11 August
Weather: Cloudy. 90% chance of showers.
Winds: West to southwesterly 15 to 20 knots turning northwesterly 20 to 25 knots during the morning and early afternoon. Winds reaching up to 30 knots in the evening.
Seas: Below 1 metre, increasing to 1.5 to 2.5 metres during the morning.
Swell: Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore. Easterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. Near 100% chance of showers, with possible small hail.
Winds: Northwesterly 25 to 30 knots tending westerly 20 to 30 knots in the early morning.
Seas: 2.5 to 3 metres.
Swell: Westerly 4 to 5 metres.
Forecast for Thursday, 13 August
Weather: Partly cloudy. 95% chance of showers.
Winds: Westerly 25 to 35 knots.
Seas: 3 to 4 metres, decreasing to 2.5 to 3 metres during the afternoon or evening.
Swell: Westerly 5 to 6 metres.

Forecast for Monday, 10 August
Weather: Cloudy. Near 100% chance of rain.
Winds: Southerly 20 to 30 knots.
Seas: 2 to 3 metres.
Swell: Northeasterly 1.5 to 2.5 metres.
Forecast for Tuesday, 11 August
Weather: Partly cloudy.
Winds: South to southwesterly 20 to 25 knots, reaching up to 30 knots during the morning. Winds shifting north to northwesterly 15 to 20 knots in the late afternoon.
Seas: 2 to 3 metres, decreasing below 2 metres around midday, then decreasing below 1 metre by early evening.
Swell: Northeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Southwesterly below 0.5 metres, tending southerly 1 to 1.5 metres during the morning.
Forecast for Wednesday, 12 August
Weather: Partly cloudy. 70% chance of showers.
Winds: Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the morning then tending westerly 15 to 20 knots in the middle of the day.
Seas: 1 to 2 metres.
Swell: Southerly 1 to 1.5 metres. Easterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Forecast for Thursday, 13 August
Weather: Mostly sunny.
Winds: West to northwesterly 15 to 20 knots.
Seas: Below 1 metre, increasing to 1 to 1.5 metres offshore.
Swell: Southerly 1 to 2 metres. Easterly around 1 metre.
Swan Island
▲ N
6 kn SW
· 12 °C
Warnings
No warnings within 100 km.
State Wide
Marine
View all TAS warnings
Temperature
Cape Portland
12 °C 13 °C 12pm 8 °C 4am
↓ Cooling
Now: 12 °C
Tides
Cape Portland
5:06pm 1.55m 11:57pm 0.01m
↓ Falling
Current: 0.44m
Weather Now for Cape Portland
Cloudy.
12 °C
Feels like 10 °C
Wind
6 kn SW
Humidity
72%
Pressure
997 hPa
At Swan Island
Nearby Wind
50 km radius
N S W E 20 kn Larapuna (Eddystone Point)
Cape Portland
6 kn SW
Recent Locations
Cape Portland
6 kn SW
 12°
Geraldton
18 kn SW
 15°
Sun
7:04am rise 5:22pm set
10 h 18 m of daylight
Now: 9:31pm
131 seconds more than yesterday
Moon
5:19amrise 2:17pmset
6% illuminated
Waning Crescent
Live Weather
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6 kn SW
 12°
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14 kn SE
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