Portland Bay Marina Weather Forecast

    • 16
    • 21

    Partly cloudy

    • 15
    • 30

    Partly cloudy

    • 14
    • 18

    Shower or two. Windy

    • 12
    • 17

    Cloudy

    • 11
    • 19

    Partly cloudy

    • 12
    • 18

    Possible shower

    • 12
    • 17

    Possible shower

Today 8 Jan South West

Partly cloudy. Slight chance of a shower near the coast, near zero chance elsewhere. The chance of a thunderstorm with little or no rainfall, possibly severe with damaging winds in the northeast in the afternoon and evening. Winds northeast to southeasterly 15 to 20 km/h becoming light before dawn then becoming south to southeasterly 20 to 30 km/h in the early morning. Overnight temperatures falling to between 16 and 19 with daytime temperatures reaching 24 to 35.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Variable about 10 knots becoming south to southwesterly 10 to 15 knots before dawn then turning southeasterly 15 to 20 knots in the late morning.
Seas
Below 0.5 metres, increasing to around 1 metre during the morning.
1st Swell
Southwesterly 2 metres, increasing to 2 to 3 metres during the morning.
Weather
Partly cloudy. The chance of a thunderstorm in the morning and early afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Bay Marina Temperature Statistics View More

January Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 6 January, 2026

    11.4 °C

  • Average January

    15.6 °C

  • Highest 5 January, 2026

    20.2 °C

Climate (2021–Present)

Cape Nelson Lighthouse (11km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
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