Portland Bay Weather Forecast

    • 14
    • 20

    Windy. Partly cloudy

    • 12
    • 17

    Shower or two

    • 12
    • 19

    Cloudy

    • 9
    • 21

    Partly cloudy

    • 11
    • 20

    Possible shower

    • 12
    • 21

    Cloudy

    • 11
    • 21

    Cloudy

Today 11 Mar South West

Partly cloudy. Medium chance of showers near the Otways, slight chance elsewhere. Winds westerly 35 to 45 km/h turning southwesterly 25 to 40 km/h in the late afternoon then decreasing to 20 to 30 km/h in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas
2.5 to 3 metres.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A low pressure trough over eastern Bass Strait will move over the Tasman Sea tonight as a ridge of high pressure extends over southern Victoria. The ridge will persist through the end of the week and into the weekend as a large high pressure system crosses waters south of the Bight.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

March Temperature

Portland Airport (25km)

  • Lowest 4 March, 2026

    6.5 °C

  • Average March

    16.1 °C

  • Highest 1 March, 2026

    23.3 °C

Climate (2021–Present)

Portland Airport (25km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.1 °C
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