Portland Bay Weather Forecast

    • 5
    • 17

    Cloud clearing

    • 8
    • 20

    Showers increasing

    • 8
    • 15

    Showers increasing

    • 9
    • 16

    Showers easing

    • 7
    • 18

    Showers

    • 9
    • 15

    Showers

    • 8
    • 16

    Shower or two

Today 31 Aug South West

Cloud clearing. Light winds becoming northerly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 16 and 19.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Variable about 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system moves across southeastern Australia and into the Tasman Sea today. A cold front approaches from the west and crosses Victoria later Tuesday. A second cold front embedded in a westerly flow clips the south of the State on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

August Temperature

Portland Airport (25km)

  • Lowest 2 August, 2026

    2.2 °C

  • Average August

    10.7 °C

  • Highest 19 August, 2026

    17.6 °C

Climate (2021–2026)

Portland Airport (25km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.2 °C
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