Cape Portland Weather Forecast

    • 8
    • 20

    Clear

    • 9
    • 22

    Sunny

    • 14
    • 23

    Storm

    • 11
    • 18

    Windy

    • 8
    • 19

    Windy

    • 6
    • 19

    Partly cloudy

    • 10
    • 21

    Partly cloudy

Today 11 Dec North East

Mostly clear. Winds north to northeasterly 15 to 20 km/h becoming light in the late evening.

Banks Strait and Franklin

Wind
Easterly 10 to 15 knots turning northeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Northwest to southwesterly below 0.5 metres.
Weather
Clear.
Weather Situation
A high pressure system over the state will drift eastwards into the Tasman Sea on Friday. A weak cold front is expected to cross Tasmania during Saturday, ahead of a second stronger cold front to cross on Sunday. A high pressure system in the Bight is forecast to extend a ridge over western Tasmania late Monday.
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  • 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

    14.4 °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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