Portland Harbour Weather Forecast

    • 7
    • 16

    Clear

    • 9
    • 17

    Sunny

    • 11
    • 16

    Showers easing

    • 7
    • 16

    Mostly sunny

    • 8
    • 19

    Shower or two

    • 12
    • 17

    Showers

    • 7
    • 15

    Possible shower

Today 8 Jun South West

Clear. Winds north to northeasterly 15 to 25 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northerly 10 to 15 knots, reaching up to 20 knots offshore during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Mostly clear.
Weather Situation
A high pressure system over the Tasman Sea will continue to direct a northerly airstream across Victoria with winds strengthening on Tuesday as a cold front crosses the Bight. The front is expected to weaken as it crosses Victoria on Wednesday with a new high pressure ridge extending over the State in its wake on Thursday. This ridge will weaken on Friday as another front moves into the Bight, strengthening northerly winds again.
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

    12.6 °C

  • Highest 6 June, 2026

    16.5 °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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