Portland Offshore Weather Forecast

    • 10
    • 23

    Showers increasing

    • 11
    • 15

    Shower or two

    • 9
    • 13

    Shower or two

    • 8
    • 13

    Cloudy

    • 7
    • 15

    Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 9
    • 20

    Mostly sunny

Today 11 Oct South West

The chance of fog in the north in the early morning. Mostly sunny day. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the northwest at night. Light winds becoming northerly 25 to 35 km/h in the morning. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching the low to mid 20s.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 10 to 15 knots tending northerly 15 to 20 knots in the morning then turning west to northwesterly in the afternoon.
Seas
1 to 1.5 metres.
1st Swell
West to southwesterly 3 to 5 metres.
Weather
Partly cloudy. 80% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

October Temperature

Cape Nelson Lighthouse (9 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 (9 km)

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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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