Portland Harbour Weather Forecast

    • 11
    • 25

    Mostly clear

    • 14
    • 28

    Sunny

    • 15
    • 21

    Shower or two

    • 10
    • 20

    Partly cloudy

    • 12
    • 16

    Cloudy

    • 11
    • 17

    Cloudy

    • 9
    • 20

    Mostly sunny

Today 30 Mar South West

Mostly clear. Winds north to northwesterly 15 to 20 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
North to northeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system is in the Tasman Sea. As a result winds will tend northerly and continue Tuesday. A trough of low pressure moving over Victoria on Wednesday will see winds shift west to southwesterly across western and central parts and over the remainder on Thursday, with the passage of another trough.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

March Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 27 March, 2026

    9.7 °C

  • Average March

    16.5 °C

  • Highest 24 March, 2026

    25.9 °C

Climate (2021–Present)

Cape Nelson Lighthouse (11km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.6 °C
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