Portland Bay Weather Forecast

    • 9
    • 16

    Shower or two. Windy

    • 7
    • 15

    Shower or two

    • 5
    • 20

    Partly cloudy

    • 8
    • 18

    Showers increasing. Windy

    • 6
    • 15

    Showers increasing

    • 8
    • 16

    Shower or two

    • 7
    • 15

    Shower or two

Today 16 Sep South West

Partly cloudy. High chance of showers near the Otways, medium chance elsewhere. The chance of a thunderstorm early this evening. Winds northwesterly 25 to 35 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 25 to 30 knots, reaching up to 35 knots in the far east in the late evening.
Seas
3 metres.
1st Swell
Westerly 4 to 5 metres.
Weather
Cloudy. 90% chance of showers, with possible small hail offshore later tonight. The chance of a thunderstorm.
Weather Situation
Strong westerly flow over Bass Strait will persist as a high pressure system passes to the north of Victoria. The high will move into the Tasman on Thursday, before another cold front crosses Bass Strait on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Temperature Statistics View More

September Temperature

Portland Airport (25km)

  • Lowest 5 September, 2025

    2.2 °C

  • Average September

    11.9 °C

  • Highest 14 September, 2025

    21.3 °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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