Portland Offshore Weather Forecast

    • 15
    • 18

    Partly cloudy

    • 13
    • 18

    Partly cloudy

    • 10
    • 22

    Sunny

    • 15
    • 35

    Becoming windy. Sunny

    • 15
    • 20

    Partly cloudy

    • 13
    • 27

    Sunny

    • 18
    • 29

    Partly cloudy

Today 21 Jan South West

Partly cloudy. High chance of showers near the Otways, slight chance elsewhere. Winds southerly 25 to 35 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 20 to 25 knots.
Seas
1 to 1.5 metres, increasing to 2 metres by early evening.
1st Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over waters south of the Bight extends a ridge over western Victoria, extending more broadly over the state on Thursday, before progressing eastwards to be over the Tasman Sea by Friday. A trough of low pressure enters from the west late Saturday, forecast to move across the state into early Sunday. A new high pressure centre is expected to lie to the southwest of the state on Sunday, directing a south to southeasterly airstream over Victoria.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

January Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 6 January, 2026

    11.4 °C

  • Average January

    16.7 °C

  • Highest 7 January, 2026

    32.6 °C

Climate (2021–Present)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
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