Portland Bay Marina Weather Forecast

    • 7
    • 14

    Showers

    • 5
    • 14

    Showers. Windy

    • 9
    • 15

    Showers

    • 9
    • 15

    Showers easing

    • 8
    • 15

    Cloudy

    • 7
    • 16

    Partly cloudy

    • 6
    • 15

    Mostly sunny

Today 11 Jul South West

Cloudy. Very high chance of showers, most likely in the afternoon and evening. Snow falling above 900 metres. Winds northerly 20 to 30 km/h increasing to 25 to 40 km/h in the morning then tending northwesterly 20 to 30 km/h in the late afternoon. Overnight temperatures falling to between 4 and 7 with daytime temperatures reaching between 12 and 15.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northerly 20 to 30 knots, reaching up to 35 knots in the far west in the early afternoon. Winds turning westerly in the late afternoon.
Seas
1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
Southwesterly 2 metres, tending westerly 2 to 3 metres by early evening.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the far west in the late afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Marina Temperature Statistics View More

July Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 6 July, 2026

    5.4 °C

  • Average July

    10.8 °C

  • Highest 1 July, 2026

    17.4 °C

Climate (2021–2026)

Cape Nelson Lighthouse (11km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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