Portland Bay Weather Forecast

    • 10
    • 18

    Partly cloudy

    • 10
    • 18

    Showers

    • 6
    • 15

    Showers

    • 10
    • 17

    Showers easing

    • 10
    • 17

    Shower or two

    • 10
    • 17

    Shower or two

    • 10
    • 18

    Possible shower

Today 5 May South West

Partly cloudy. Light winds.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 10 to 15 knots, reaching up to 20 knots in the west.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A weak ridge of high pressure extending over Victoria will be cleared on Wednesday as a cold front crosses over Victoria. This front is expected to develop a low pressure system off the east coast on Thursday which will move into the Tasman Sea on Friday. The high pressure ridge will begin to redevelop from the west on the weekend with the high pressure centre sitting well south of the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

May Temperature

Portland Airport (25km)

  • Lowest 3 May, 2026

    10.6 °C

  • Average May

    17.3 °C

  • Highest 1 May, 2026

    27.3 °C

Climate (2021–Present)

Portland Airport (25km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.1 °C
Get WillyWeather+ to remove ads