Portland Offshore Weather Forecast

    • 14
    • 19

    Showers. Becoming very windy

    • 12
    • 17

    Cloudy

    • 12
    • 19

    Cloudy

    • 13
    • 19

    Cloudy

    • 13
    • 18

    Possible shower

    • 13
    • 17

    Shower or two

    • 14
    • 19

    Cloudy

Today 10 Jan South West

Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds westerly 35 to 55 km/h turning south to southwesterly 20 to 30 km/h during the afternoon and evening. Daytime maximum temperatures 20 to 25.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 20 to 25 knots, reaching up to 30 knots in the late morning and afternoon. Winds turning southwesterly 15 to 25 knots in the early afternoon.
Seas
2 to 3 metres, decreasing to 1.5 to 2 metres by early evening.
1st Swell
Westerly 4 to 5 metres.
Weather
Partly cloudy.
Weather Situation
A trough is extending across the northeast of the state this morning. A cold front will move across the south behind the trough, exiting in the east during the evening. A high pressure ridge will begin to develop from the west on Sunday and persist across the state until Monday when a broad area of low pressure develops in the far north, lingering into Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

January Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 6 January, 2026

    11.4 °C

  • Average January

    17.2 °C

  • Highest 7 January, 2026

    32.6 °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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