Portland Offshore Weather Forecast

    • 10
    • 16

    Shower or two

    • 11
    • 16

    Shower or two

    • 10
    • 16

    Possible shower

    • 9
    • 17

    Cloudy

    • 7
    • 19

    Sunny

    • 9
    • 20

    Partly cloudy

    • 10
    • 21

    Possible shower

Today 8 May South West

Cloudy. Medium chance of showers. Winds southwesterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 20 knots.
Seas
1.5 metres, increasing to 1.5 to 2 metres in the far east.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A large high pressure system in the Bight continues to build and will slowly drift eastwards over the coming days, moving south of Victoria early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

May Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 7 May, 2026

    6.7 °C

  • Average May

    15.4 °C

  • Highest 1 May, 2026

    28.1 °C

Climate (2021–Present)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.6 °C
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