Portland Harbour Weather Forecast

    • 9
    • 13

    Possible shower

    • 9
    • 13

    Shower or two

    • 5
    • 14

    Shower or two

    • 8
    • 15

    Showers

    • 8
    • 14

    Possible shower

    • 6
    • 14

    Cloudy

    • 6
    • 14

    Partly cloudy

Today 20 Jun South West

Partly cloudy. Slight chance of a shower near the coast, near zero chance elsewhere. Light winds.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Cloudy.
Weather Situation
A cold front over eastern Victoria will clear the State tonight as a high pressure system south of the Bight moves eastwards. The high will slowly cross South Australia on Sunday and Monday as a weak cold front approaches from the southwest. The front is expected to cross southern Victoria on Tuesday, with the high over South Australia moving over western Bass Strait during Wednesday.
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 15 June, 2026

    4.9 °C

  • Average June

    13.3 °C

  • Highest 12 June, 2026

    19 °C

Climate (2021–2026)

Cape Nelson Lighthouse (11km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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