Sterile Island Weather Forecast

    • 9
    • 24

    Partly cloudy

    • 10
    • 27

    Partly cloudy

    • 15
    • 24

    Shower

    • 13
    • 22

    Shower

    • 11
    • 27

    Partly cloudy

    • 14
    • 23

    Shower

    • 11
    • 17

    Shower

Today 18 Oct South East

Sunny. Winds northwest to northeasterly 15 to 20 km/h tending northeast to southeasterly 15 to 25 km/h in the early afternoon then becoming light in the late evening. Daytime maximum temperatures 21 to 26.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Northerly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming north to northeasterly 10 to 15 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 metres.
Weather
Sunny.
Weather Situation
A ridge extends over Tasmania, as a high pressure system over the Tasman Sea continues to slowly drift eastwards over the weekend. A northwesterly flow is forecast to develop over the state tomorrow as a cold front approaches from the west. The front weakens into a trough as it moves over Tasmania on Tuesday and Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sterile Island Temperature Statistics View More

October Temperature

Cape Bruny (14 km)

  • Lowest 13 October, 2026

    4.9 °C

  • Average October

    12 °C

  • Highest 9 October, 2026

    22.8 °C

Climate (2021–2026)

Cape Bruny (14 km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    12.5 °C

  • Average High 2021–2026

    16.6 °C
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