Portland Weather Forecast

    • 11
    • 21

    Shower or two

    • 10
    • 18

    Partly cloudy

    • 10
    • 18

    Partly cloudy

    • 10
    • 18

    Partly cloudy

    • 9
    • 24

    Mostly sunny

    • 13
    • 19

    Possible shower

    • 11
    • 17

    Shower or two. Windy

Today 8 Dec South West

Partly cloudy. Medium chance of showers near the Otways, slight chance elsewhere. Winds westerly 25 to 40 km/h decreasing to 15 to 20 km/h in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
West to northwesterly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas
2 to 2.5 metres.
1st Swell
Westerly 2.5 to 3 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A ridge of high pressure over the state will weaken ahead of a cold front expected to move over Bass Strait late Monday and early Tuesday. A new ridge of high pressure will extend across from the west on Tuesday and persist during Wednesday then the main high pressure centre will move eastwards across Tasmania on Thursday. A trough will move across the far west on Friday then over the remainder of the state on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Temperature Statistics View More

December Temperature

Cape Nelson Lighthouse (10km)

  • Lowest 5 December, 2025

    9.7 °C

  • Average December

    15 °C

  • Highest 3 December, 2025

    25.3 °C

Climate (2020–Present)

Cape Nelson Lighthouse (10km)

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  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    17.5 °C
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