Portland Offshore Weather Forecast

    • 9
    • 13

    Shower or two

    • 8
    • 13

    Possible shower

    • 3
    • 15

    Partly cloudy

    • 4
    • 15

    Cloudy

    • 6
    • 14

    Cloudy

    • 6
    • 14

    Partly cloudy

    • 5
    • 14

    Partly cloudy

Today 4 Jul South West

Cloudy. Medium chance of showers, most likely in the early morning. Winds westerly 15 to 20 km/h turning south to southwesterly 15 to 25 km/h during the morning. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 12.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the east early in the morning. Winds turning southerly 10 to 15 knots in the evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

July Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 3 July, 2026

    7.4 °C

  • Average July

    11.9 °C

  • Highest 1 July, 2026

    17.4 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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