Portland Offshore Weather Forecast

    • 17
    • 25

    Shower or two

    • 11
    • 18

    Rain increasing

    • 10
    • 15

    Rain

    • 8
    • 15

    Showers

    • 8
    • 16

    Shower or two

    • 10
    • 17

    Shower or two

    • 10
    • 17

    Partly cloudy

Today 23 Oct South West

Cloudy. Medium chance of showers. The chance of a thunderstorm early this evening. Winds northwest to southwesterly 20 to 30 km/h tending south to southwesterly 15 to 20 km/h in the evening then becoming light in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 10 to 15 knots decreasing to about 10 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm inshore early this evening.
Weather Situation
A low pressure trough over western Victoria will persist throughout Saturday. The trough will move east on Sunday, reaching central districts during the morning and eastern Victoria during the afternoon before clearing the State at night. A cool to cold west to southwesterly airstream will follow on Monday and Tuesday as a ridge of high pressure extends over northwestern Victoria.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

October Temperature

Cape Nelson Lighthouse (9 km)

  • Lowest 5 October, 2026

    7.8 °C

  • Average October

    15.1 °C

  • Highest 19 October, 2026

    28.7 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9 km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.7 °C
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