BoM Portland Harbour Marine Weather Forecast

Winds: North to northwesterly 20 to 25 knots, reaching up to 30 knots during the day. Winds turning west to southwesterly 15 to 20 knots in the evening.

Seas: 2 to 3 metres, decreasing to 1 to 2 metres by early evening.

Swell: Southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres around midday, then increasing to 2 to 3 metres by early evening.

Winds: South to southwesterly 15 to 25 knots, reaching up to 30 knots in the west during the morning. Winds tending south to southeasterly 15 to 20 knots during the morning and early afternoon.

Seas: 1.5 to 2.5 metres, decreasing to 1 metre by early evening.

Swell: Southwesterly 2 to 4 metres, decreasing to 2 to 3 metres during the morning.

Winds: South to southeasterly 10 to 15 knots decreasing to about 10 knots during the morning.

Seas: Below 1 metre.

Swell: Southwesterly 1.5 to 2.5 metres.

Winds: Northwesterly 15 to 20 knots, reaching up to 30 knots in the west in the late afternoon.

Seas: 1.5 to 2.5 metres.

Swell: West to southwesterly below 1 metre inshore, increasing to around 1 metre offshore.

Winds: Westerly 15 to 25 knots shifting southeasterly during the morning.

Seas: 1 to 2 metres.

Swell: West to southwesterly around 1 metre, increasing to 1 to 2 metres during the morning, then tending southeast to southwesterly 1 to 1.5 metres by early evening.

Winds: Southerly 10 to 15 knots decreasing to about 10 knots during the afternoon.

Seas: Around 1 metre.

Swell: West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.

Winds: North to northwesterly 15 to 20 knots, reaching up to 30 knots in the far east during the morning. Winds tending west to northwesterly in the evening.

Seas: Around 1 metre, increasing to 1.5 to 2.5 metres in the east.

Swell: Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning. Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.

Winds: West to northwesterly 15 to 20 knots tending west to southwesterly in the early morning then tending southeast to southwesterly in the late afternoon. Winds reaching up to 30 knots in the west in the early afternoon.

Seas: 1 to 1.5 metres, increasing to 1 to 2 metres in the west.

Swell: South to southwesterly 1 to 1.5 metres, tending west to southwesterly 1 to 2 metres during the morning, then tending southerly 2 to 2.5 metres by early evening. Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.

Winds: Southerly 15 to 20 knots.

Seas: 1 to 1.5 metres, decreasing to 1 metre during the evening.

Swell: Southerly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon or evening.

Winds: North to northwesterly 20 to 30 knots shifting southerly in the late afternoon.

Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres around midday, increasing to 2 to 3 metres in the west by early evening.

Swell: Southwesterly 1.5 to 2 metres, increasing to 2 to 4 metres during the morning.

Winds: Southerly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds decreasing to 10 to 15 knots in the early afternoon.

Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres around midday.

Swell: Southwesterly 4 metres, tending southerly 4 metres during the morning, then tending southwesterly 3 to 4 metres around midday.

Winds: Southerly 10 to 15 knots decreasing to below 10 knots during the evening.

Seas: Below 1 metre.

Swell: Southwesterly 2.5 to 3 metres.