Cape Portland Weather Forecast

    • 7
    • 19

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 10
    • 21

    Sunny

    • 10
    • 21

    Partly cloudy

    • 10
    • 21

    Partly cloudy

    • 11
    • 20

    Partly cloudy

    • 9
    • 19

    Partly cloudy

Today 21 Apr North East

Partly cloudy. Winds east to northeasterly 15 to 20 km/h becoming light in the evening then becoming northeast to southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 15 and 20.

Banks Strait and Franklin

Wind
Easterly 10 to 15 knots tending northeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southeasterly around 1 metre, increasing to 1 to 1.5 metres about Banks Strait.
Weather
Partly cloudy.
Weather Situation
A high over the Southern Tasman Sea extends a ridge over the state. A weak cold front is expected to approach Tasmania during Wednesday, then cross the state late Wednesday and early Thursday ahead of another high that will move over Tasmania and into the Tasman Sea on Thursday. A northerly airstream will be maintained on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Portland Temperature Statistics View More

April Temperature

Swan Island (12km)

  • Lowest 18 April, 2026

    8.4 °C

  • Average April

    15 °C

  • Highest 1 April, 2026

    22.2 °C

Climate (2021–Present)

Swan Island (12km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.5 °C
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