Cape Portland Weather Forecast

    • 4
    • 15

    Windy

    • 9
    • 16

    Windy

    • 12
    • 18

    Windy

    • 10
    • 20

    Windy

    • 8
    • 15

    Windy

    • 6
    • 16

    Partly cloudy

    • 6
    • 17

    Partly cloudy

Today 17 Sep North East

Mostly sunny. Winds westerly 25 to 35 km/h. Daytime maximum temperatures between 13 and 18.

Banks Strait and Franklin

Wind
Westerly 20 to 30 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
1st Swell
Southeast to southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A high moving over Victoria directs a cold west to southwesterly wind over Tasmania. Strong and gusty northwesterly winds are forecast on Friday as a deep low pressure system develops well to the south. A weak ridge is forecast to extend over the state on Saturday, before a cold front crosses the state on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Portland Temperature Statistics View More

September Temperature

Swan Island (12km)

  • Lowest 16 September, 2026

    6.3 °C

  • Average September

    12.3 °C

  • Highest 13 September, 2026

    17.9 °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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