Portland Harbour Weather Forecast

    • 7
    • 17

    Shower or two

    • 11
    • 18

    Rain easing. Storm clearing

    • 9
    • 13

    Possible shower

    • 8
    • 15

    Partly cloudy

    • 7
    • 17

    Partly cloudy

    • 9
    • 17

    Cloudy

    • 9
    • 23

    Shower or two

Today 25 Oct South West

Cloudy. The chance of fog in the east early this morning. High chance of showers in the north, medium chance elsewhere. The chance of a thunderstorm in the west during this afternoon and evening. Light winds becoming northeasterly 15 to 20 km/h in the evening. Daytime maximum temperatures around 18.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Variable about 10 knots becoming easterly 15 to 20 knots in the early afternoon.
Seas
Below 0.5 metres, increasing to around 1 metre around midday.
1st Swell
Southwesterly 2 metres.
Weather
Cloudy. The chance of a thunderstorm in the far west during this afternoon and evening.
Weather Situation
A high pressure is moving eastwards over the Tasman Sea today as a low pressure system develops over the Bight. This low will move over Bass Strait on Sunday and will extend a cold front over Victoria. A broad trough will extend over Victoria early next week from a low pressure system centred to the north and a high pressure ridge will move over Tasmania.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

October Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 2 October, 2025

    8.2 °C

  • Average October

    13.6 °C

  • Highest 16 October, 2025

    26 °C

Climate (2020–Present)

Cape Nelson Lighthouse (11km)

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  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    17.6 °C
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