Portland Weather Forecast

    • 6
    • 14

    Partly cloudy

    • 6
    • 17

    Mostly sunny

    • 8
    • 18

    Shower or two

    • 11
    • 16

    Showers

    • 8
    • 16

    Shower or two

    • 8
    • 16

    Showers

    • 8
    • 14

    Shower or two

Today 16 Aug South West

Mostly clear. Light winds.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
East to southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system centred over Tasmania will move over the Tasman Sea on Monday. An associated ridge south of Victoria will also move eastwards over the Tasman Sea on Monday. A low pressure trough will move across SA on Tuesday and early Wednesday then will slip to the south of Victoria during Wednesday then a weak high pressure ridge will move over the state on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Temperature Statistics View More

August Temperature

Cape Nelson Lighthouse (10km)

  • Lowest 1 August, 2026

    5.6 °C

  • Average August

    11.5 °C

  • Highest 2 August, 2026

    15.7 °C

Climate (2021–2026)

Cape Nelson Lighthouse (10km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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