Portland Harbour Weather Forecast

    • 14
    • 26

    Partly cloudy

    • 12
    • 22

    Possible shower

    • 10
    • 18

    Partly cloudy

    • 8
    • 20

    Mostly sunny

    • 10
    • 21

    Partly cloudy

    • 13
    • 25

    Mostly sunny

    • 15
    • 26

    Mostly sunny

Today 25 Apr South West

Partly cloudy. Winds northerly 20 to 30 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
North to northwesterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the southern Tasman Sea continues to extend a ridge over Victoria. The high will remain near stationary over the coming days. A weak trough will enter western Victoria on Sunday before dissipating as the ridge of high pressure redevelops and remains dominant into the new week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

April Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 19 April, 2026

    9.2 °C

  • Average April

    15.4 °C

  • Highest 23 April, 2026

    27.7 °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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