Cape Portland Weather Forecast

    • 10
    • 17

    Rain

    • 11
    • 15

    Windy

    • 6
    • 13

    Partly cloudy

    • 2
    • 13

    Partly cloudy

    • 4
    • 13

    Shower

    • 7
    • 14

    Shower

    • 5
    • 13

    Partly cloudy

Today 18 Jun North East

Cloudy. Very high chance of rain, most likely from the late morning. Winds west to northwesterly 15 to 20 km/h becoming light before dawn then becoming north to northwesterly 25 to 35 km/h in the morning. Overnight temperatures falling to around 10 with daytime temperatures reaching between 12 and 17.

Banks Strait and Franklin

Wind
Variable below 10 knots becoming northerly 15 to 20 knots in the morning then tending northwesterly in the late evening. Winds reaching up to 30 knots inshore in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southeast to southwesterly below 1 metre.
Weather
Partly cloudy. 90% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Portland Temperature Statistics View More

June Temperature

Swan Island (12km)

  • Lowest 5 June, 2026

    7.3 °C

  • Average June

    13.5 °C

  • Highest 12 June, 2026

    18 °C

Climate (2021–2026)

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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