Portland Offshore Weather Forecast

    • 5
    • 17

    Mostly clear

    • 8
    • 16

    Possible shower

    • 10
    • 16

    Showers easing

    • 9
    • 16

    Showers

    • 9
    • 14

    Showers

    • 7
    • 15

    Showers easing

    • 9
    • 13

    Shower or two

Today 28 Jun South West

Mostly clear. Slight chance of a shower about the ranges later this evening. Near zero chance of rain elsewhere. Winds northeasterly 15 to 20 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore later in the evening.
1st Swell
Southwesterly 2 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system moves over the southern Tasman Sea, tending the flow more northerly into Monday, before strengthening into Tuesday as a series of cold fronts cross the Bight during the week. Winds are expected to shift northwesterly into Wednesday as a cold front crosses Victoria, ahead of a secondary cold front to shift winds southwesterly into late Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

June Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 15 June, 2026

    4.9 °C

  • Average June

    12.7 °C

  • Highest 12 June, 2026

    19 °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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