Portland Weather Forecast

    • 10
    • 18

    Clear

    • 9
    • 27

    Partly cloudy

    • 12
    • 19

    Partly cloudy

    • 11
    • 16

    Possible shower. Windy

    • 10
    • 16

    Cloudy

    • 10
    • 17

    Cloudy

    • 9
    • 27

    Sunny

Today 11 Dec South West

Clear. Winds southeasterly 15 to 20 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Easterly 10 to 15 knots, reaching up to 20 knots in the west.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2 metres.
Weather
Clear.
Weather Situation
A ridge of high pressure over Tasmania will clear into the Tasman Sea on Friday with a trough lingering just across the NSW border along the east coast. A separate trough will then sweep across the state on Saturday, entering from the west in the early morning and clearing in the east by the evening. On Sunday a cold front will skim across the south with a new high pressure ridge developing in its wake on Monday.
Graph Plots Open in Graphs
  • 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

    15.2 °C
  • Highest 3 December, 2025

    25.3 °C

Climate (2020–Present)

Cape Nelson Lighthouse (10km)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2020–2025

    11.8 °C
  • Average 2020–2025

    14.3 °C
  • Average High 2020–2025

    17.5 °C
Get WillyWeather+ to remove ads