Portland Harbour Weather Forecast

    • 9
    • 15

    Showers

    • 10
    • 16

    Showers easing

    • 9
    • 17

    Partly cloudy

    • 7
    • 16

    Partly cloudy

    • 8
    • 18

    Sunny

    • 13
    • 18

    Showers

    • 8
    • 16

    Shower or two

Today 5 Jun South West

Cloudy. High chance of showers in the south, slight chance elsewhere. Winds westerly 15 to 25 km/h. Daytime maximum temperatures around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 20 to 25 knots, reaching up to 30 knots in the east in the late afternoon.
Seas
1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A low pressure system in the western Tasman Sea will continue moving east. A new weak trough will skim the south later today before a ridge of high pressure develops over the state on Saturday. This ridge will persist over Victoria on the long weekend as the high pressure centre moves to the north and Sunday and then into the Tasman by Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

June Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 1 June, 2026

    8.8 °C

  • Average June

    12 °C

  • Highest 2 June, 2026

    16.2 °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

    17.6 °C
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