Portland Offshore Weather Forecast

    • 9
    • 15

    Showers. Windy

    • 9
    • 15

    Showers easing

    • 6
    • 15

    Cloudy

    • 7
    • 15

    Partly cloudy

    • 4
    • 14

    Partly cloudy

    • 5
    • 15

    Partly cloudy

    • 6
    • 16

    Mostly sunny

Today 13 Jul South West

Cloudy. Very high chance of showers. Winds northwesterly 25 to 40 km/h. Daytime maximum temperatures around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 25 to 30 knots, reaching up to 35 knots in the afternoon. Winds tending west to southwesterly 20 to 25 knots in the late evening.
Seas
2.5 to 3 metres.
1st Swell
Westerly 5 to 6 metres, tending southwesterly 6 metres later in the evening.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the far east.
Weather Situation
A cool westerly airstream extends over Victoria with embedded cold fronts and troughs to cross southern Victoria at times until Tuesday. The westerly airstream weakens on Wednesday as a high pressure system over the Bight extends a ridge over Victoria, before the high centre moves over the state during Thursday.
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 6 July, 2026

    5.4 °C

  • Average July

    11 °C

  • Highest 1 July, 2026

    17.4 °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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