Cape Portland Weather Forecast

    • 11
    • 19

    Shower

    • 11
    • 19

    Windy

    • 7
    • 19

    Partly cloudy

    • 8
    • 20

    Sunny

    • 10
    • 22

    Partly cloudy

    • 14
    • 23

    Shower

    • 11
    • 18

    Windy

Today 8 Dec North East

Cloudy. High chance of showers. Winds northwesterly 30 to 45 km/h decreasing to 25 to 35 km/h in the late evening.

Banks Strait and Franklin

Wind
Northwesterly 20 to 25 knots, reaching up to 30 knots about Banks Strait during the afternoon and evening.
Seas
2 to 2.5 metres.
1st Swell
West to northwesterly below 1 metre, increasing to 1 to 1.5 metres about Banks Strait.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A cold front over Tasmania will move away to the east overnight, bringing a westerly stream that will persist through Tuesday with a high to build over the Bight and extend a ridge to the north of Tasmania. The high centre will slowly approach Tasmania on Wednesday, with the high expected to move over Tasmania on Thursday and slowly away to the east of the state during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Portland Temperature Statistics View More

December Temperature

Swan Island (12km)

  • Lowest 2 December, 2025

    8.3 °C

  • Average December

    14.2 °C

  • Highest 4 December, 2025

    22.8 °C

Climate (2020–Present)

Swan Island (12km)

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  • Average Low 2020–2025

    11.9 °C

  • Average 2020–2025

    14.4 °C

  • Average High 2020–2025

    17.5 °C
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