Portland Offshore Weather Forecast

    • 12
    • 17

    Showers easing

    • 8
    • 14

    Shower or two

    • 8
    • 14

    Partly cloudy

    • 6
    • 16

    Partly cloudy

    • 10
    • 24

    Partly cloudy

    • 13
    • 19

    Showers

    • 10
    • 19

    Showers

Today 25 Sep South West

Cloudy. High chance of showers. The chance of a thunderstorm in the afternoon and evening. Winds northwest to northeasterly 15 to 20 km/h tending northwest to southwesterly in the middle of the day then tending southeast to southwesterly in the late afternoon. Overnight temperatures falling to around 12 with daytime temperatures reaching between 19 and 23.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 10 to 15 knots shifting south to southwesterly during the morning.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 1.5 to 2 metres by early evening.
Weather
Cloudy. 90% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

September Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 8 September, 2026

    3.5 °C

  • Average September

    13.1 °C

  • Highest 20 September, 2026

    25.5 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9km)

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

  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
Get WillyWeather+ to remove ads