Portland Offshore Weather Forecast

    • 8
    • 14

    Partly cloudy

    • 5
    • 16

    Cloudy

    • 9
    • 15

    Showers easing

    • 8
    • 17

    Partly cloudy

    • 7
    • 22

    Sunny

    • 15
    • 22

    Late showers

    • 11
    • 17

    Showers easing

Today 4 Oct South West

Partly cloudy. Winds southerly 15 to 20 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
South to southwesterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy.
Weather Situation
A low pressure trough will clear into the Tasman Sea as a weak high pressure system moves over far southwest Victoria. This high pressure system will be cleared by a cold front crossing southern Victoria on Tuesday morning. A new high pressure system is expected to develop in the Bight on Tuesday, moving south of the state on Wednesday, then drifting into the Tasman Sea on Thursday where it will continue to extend a weak ridge over Victoria.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

October Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 2 October, 2026

    11.8 °C

  • Average October

    13.4 °C

  • Highest 1 October, 2026

    15.8 °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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