Portland Offshore Weather Forecast

    • 7
    • 14

    Showers increasing

    • 7
    • 13

    Shower or two

    • 5
    • 13

    Cloudy

    • 5
    • 14

    Partly cloudy

    • 4
    • 16

    Partly cloudy

    • 6
    • 17

    Partly cloudy

    • 8
    • 18

    Shower or two

Today 5 Aug South West

Partly cloudy. Medium chance of showers. Winds northerly 20 to 30 km/h tending northwesterly 25 to 35 km/h before dawn. Overnight temperatures falling to around 7 with daytime temperatures reaching around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 20 to 30 knots, reaching up to 35 knots in the far west early in the morning. Winds tending west to northwesterly 20 to 25 knots in the morning then becoming northwesterly 20 to 30 knots in the late afternoon.
Seas
3 to 5 metres, decreasing to 2 to 2.5 metres during the morning.
1st Swell
Westerly 2 to 4 metres.
Weather
Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the early morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

August Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 1 August, 2025

    5.4 °C

  • Average August

    11.2 °C

  • Highest 3 August, 2025

    16.4 °C

Climate (2020–Present)

Cape Nelson Lighthouse (9km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    17.7 °C
Get WillyWeather+ to remove ads