Portland Bay Weather Forecast

    • 15
    • 40

    Afternoon cool change. Windy

    • 15
    • 21

    Mostly sunny

    • 13
    • 28

    Sunny

    • 19
    • 36

    Mostly sunny

    • 16
    • 22

    Partly cloudy

    • 15
    • 22

    Partly cloudy

    • 15
    • 24

    Partly cloudy

Today 24 Jan South West

Sunny. Winds northwest to northeasterly 25 to 35 km/h becoming northwesterly 25 to 40 km/h in the early afternoon then shifting south to southwesterly in the late afternoon. Daytime maximum temperatures around 40.

Extreme Fire Danger Rating

Take action now to protect life and property

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
North to northeasterly 15 to 20 knots shifting south to southwesterly in the late afternoon.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system in the south of the Tasman Sea is directing a northerly airstream, ahead of a trough of low pressure which is expected to 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 and then expected to move eastwards to be over the Tasman Sea on Monday. A northerly airstream is expected again on Tuesday ahead of another trough moving in from the west.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

January Temperature

Portland Airport (25km)

  • Lowest 5 January, 2026

    5.7 °C

  • Average January

    16.6 °C

  • Highest 7 January, 2026

    37.3 °C

Climate (2021–Present)

Portland Airport (25km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.1 °C
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