Portland Bay Weather Forecast

    • 10
    • 18

    Partly cloudy

    • 7
    • 19

    Showers increasing

    • 11
    • 20

    Possible early storm. Showers

    • 9
    • 16

    Cloudy

    • 7
    • 17

    Cloudy

    • 7
    • 18

    Shower or two

    • 10
    • 18

    Shower or two

Today 20 Oct South West

Partly cloudy. High chance of showers in the north, medium chance elsewhere. Light winds becoming west to southwesterly 15 to 25 km/h in the morning then becoming light in the evening. Overnight temperatures falling to around 11 with daytime temperatures reaching around 18.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 15 to 25 knots, reaching up to 30 knots in the far east in the afternoon. Winds turning southwesterly 15 to 20 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

October Temperature

Portland Airport (25km)

  • Lowest 13 October, 2025

    3.5 °C

  • Average October

    12.9 °C

  • Highest 4 October, 2025

    23.9 °C

Climate (2020–Present)

Portland Airport (25km)

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  • Average Low 2020–2025

    9.7 °C

  • Average 2020–2025

    13.5 °C

  • Average High 2020–2025

    18.1 °C
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