Portland Bay Weather Forecast

    • 16
    • 21

    Cloudy

    • 15
    • 22

    Cloudy

    • 15
    • 27

    Partly cloudy

    • 16
    • 22

    Shower or two

    • 13
    • 19

    Possible shower

    • 13
    • 21

    Partly cloudy

    • 11
    • 25

    Sunny

Today 28 Jan South West

Partly cloudy. The chance of fog in the south early this morning. The chance of smoke haze in the east. Winds southerly 20 to 30 km/h increasing to 25 to 35 km/h in the late afternoon then turning southeasterly 20 to 30 km/h in the evening. Daytime maximum temperatures 22 to 31.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
South to southwesterly 10 to 15 knots tending south to southeasterly during the day. Winds reaching up to 20 knots inshore in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy. The chance of fog early this morning with reduced visibility.
Weather Situation
A low pressure trough over central waters will shift east as a ridge of high pressure will move into the west and persist to the south of Victoria on Thursday and Friday as a trough lingers to the north. The trough in the north will extend over the south on Saturday then move eastwards across the state as a cold front approaches from the southwest. A high pressure system will become established over waters south of the Bight on Sunday.
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

    17.1 °C

  • Highest 24 January, 2026

    39.3 °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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