Portland Offshore Weather Forecast

    • 13
    • 19

    Showers

    • 11
    • 18

    Shower or two

    • 10
    • 18

    Showers

    • 11
    • 19

    Shower or two

    • 10
    • 17

    Showers

    • 9
    • 17

    Cloudy

    • 10
    • 17

    Shower or two

Today 31 Oct South West

Cloudy. Very high chance of showers, most likely in the morning. The chance of a thunderstorm in the morning. Winds northerly 15 to 25 km/h turning westerly 25 to 35 km/h in the late morning then decreasing to 15 to 25 km/h in the evening. Overnight temperatures falling to around 14 with daytime temperatures reaching around 20.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northerly 15 to 25 knots turning westerly during the morning. Winds reaching up to 30 knots in the late morning.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
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

    14.9 °C

  • Highest 22 October, 2026

    33 °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

    17.7 °C
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