Portland Bay Weather Forecast

    • 12
    • 22

    Partly cloudy

    • 13
    • 20

    Cloudy

    • 11
    • 22

    Partly cloudy

    • 10
    • 27

    Sunny

    • 14
    • 30

    Partly cloudy

    • 14
    • 26

    Partly cloudy

    • 14
    • 29

    Shower or two

Today 3 Jan South West

Partly cloudy. The chance of fog early this morning. The chance of a thunderstorm during this afternoon and early evening. Light winds becoming south to southwesterly 20 to 30 km/h in the morning. Daytime maximum temperatures 23 to 32.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres in the far west during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred south of SA extends a ridge over Victoria. The ridge will contract southwards today as a trough to the north extends over western Victoria. This trough will move slowly eastwards across the state over the weekend. A new high pressure system south of SA will extend a ridge over Victoria on Monday. The high will move eastwards during Tuesday but will continue to extend a ridge over Victoria.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

January Temperature

Portland Airport (25km)

  • Lowest 1 January, 2026

    11.2 °C

  • Average January

    14.4 °C

  • Highest 1 January, 2026

    16.9 °C

Climate (2021–Present)

Portland Airport (25km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.1 °C
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