Portland Bay Marina Weather Forecast

    • 13
    • 18

    Clear

    • 11
    • 22

    Sunny

    • 15
    • 39

    Afternoon cool change

    • 15
    • 20

    Partly cloudy

    • 14
    • 27

    Sunny

    • 19
    • 33

    Mostly sunny

    • 16
    • 20

    Partly cloudy

Today 22 Jan South West

Clear. Winds southeasterly 15 to 25 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 metres.
Weather
Clear.
Weather Situation
A high pressure system centred to the southwest of Victoria will move eastwards to be over the Tasman Sea later Friday. A trough of low pressure will move over the west late Saturday then across remaining parts overnight and during Sunday. A new high pressure centre is expected to lie to the southwest of the state on Sunday then will move eastwards to be over the Tasman Sea on Monday. Another trough will move across on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Marina Temperature Statistics View More

January Temperature

Cape Nelson Lighthouse (11km)

  • 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 (11km)

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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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