Cape Portland Weather Forecast

    • 12
    • 21

    Partly cloudy

    • 13
    • 21

    Partly cloudy

    • 11
    • 19

    Shower

    • 11
    • 18

    Shower

    • 10
    • 18

    Shower

    • 7
    • 18

    Partly cloudy

    • 6
    • 18

    Partly cloudy

Today 15 May North East

Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds north to northeasterly 15 to 20 km/h. Daytime maximum temperatures between 14 and 21.

Banks Strait and Franklin

Wind
Northeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
East to northeasterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A slow moving high pressure system near New Zealand is directing a mild to warm north to northeasterly airstream over Tasmania. A trough is expected to slowly approach the west of the State during today and Saturday, before moving across Tasmania during Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Portland Temperature Statistics View More

May Temperature

Swan Island (12km)

  • Lowest 7 May, 2026

    7.6 °C

  • Average May

    15.4 °C

  • Highest 1 May, 2026

    23 °C

Climate (2021–Present)

Swan Island (12km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.5 °C
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