Portland Offshore Weather Forecast

    • 8
    • 13

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 5
    • 18

    Sunny

    • 9
    • 22

    Cloudy

    • 12
    • 20

    Shower or two

    • 11
    • 17

    Possible shower

    • 10
    • 21

    Partly cloudy

Today 21 Sep South West

Partly cloudy. Winds southerly 15 to 25 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
South to southwesterly 10 to 15 knots decreasing to about 10 knots in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system in the Bight moves into the Tasman Sea during Tuesday, directing a warm east to northeasterly airstream over Victoria during the second half of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

September Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 8 September, 2026

    3.5 °C

  • Average September

    13.3 °C

  • Highest 13 September, 2026

    23.7 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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