Portland Harbour Weather Forecast

    • 8
    • 16

    Cloud clearing

    • 9
    • 22

    Mostly sunny

    • 11
    • 23

    Mostly sunny

    • 12
    • 24

    Sunny

    • 15
    • 25

    Partly cloudy

    • 15
    • 24

    Showers increasing

    • 14
    • 20

    Possible shower

Today 15 Oct South West

Partly cloudy. Winds east to northeasterly 15 to 25 km/h. Daytime maximum temperatures around 20.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Easterly 15 to 20 knots, reaching up to 25 knots in the far east in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres in the east during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system centred to the southwest of Victoria will drift slowly eastwards on Thursday, before becoming established over the southern Tasman Sea, remaining near stationary through the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

October Temperature

Cape Nelson Lighthouse (11 km)

  • Lowest 5 October, 2026

    7.8 °C

  • Average October

    13.8 °C

  • Highest 8 October, 2026

    25.1 °C

Climate (2021–2026)

Cape Nelson Lighthouse (11 km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.7 °C
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