Portland Offshore Weather Forecast

    • 8
    • 17

    Showers developing

    • 10
    • 16

    Showers

    • 8
    • 15

    Showers

    • 8
    • 15

    Showers increasing

    • 9
    • 15

    Showers easing

    • 8
    • 14

    Cloudy

    • 7
    • 16

    Possible shower

Today 18 Aug South West

Mostly sunny morning. The chance of fog near the Otways in the early morning. High chance of showers, most likely in the afternoon and evening. Winds northeasterly 25 to 35 km/h. Overnight temperatures falling to around 7 with daytime temperatures reaching between 15 and 18.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Becoming cloudy. 80% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

August Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 1 August, 2026

    5.6 °C

  • Average August

    11.5 °C

  • Highest 2 August, 2026

    15.7 °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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