Portland Harbour Weather Forecast

    • 13
    • 20

    Partly cloudy

    • 12
    • 21

    Sunny

    • 13
    • 20

    Partly cloudy

    • 12
    • 21

    Mostly sunny

    • 12
    • 20

    Partly cloudy

    • 11
    • 21

    Partly cloudy

    • 12
    • 22

    Partly cloudy

Today 17 Mar South West

Cloudy. Slight chance of drizzle in the morning and early afternoon. Light winds becoming southerly 15 to 20 km/h in the morning then tending southeasterly in the late afternoon. Overnight temperatures falling to around 13 with daytime temperatures reaching the low 20s.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
South to southwesterly about 10 knots becoming southeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

March Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 10 March, 2026

    11.3 °C

  • Average March

    16.8 °C

  • Highest 1 March, 2026

    23.3 °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

    17.6 °C
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