Sterile Island Weather Forecast

    • 7
    • 14

    Shower

    • 7
    • 11

    Windy

    • 7
    • 14

    Shower

    • 9
    • 15

    Shower

    • 6
    • 12

    Shower

    • 5
    • 13

    Shower

    • 4
    • 15

    Shower

Today 21 Aug South East

Cloudy. High chance of showers in the south, medium chance elsewhere. Snow falling above 1000 metres. Winds westerly 20 to 30 km/h turning northwesterly in the evening.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 20 to 30 knots.
Seas
2 to 3 metres.
1st Swell
Westerly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A cold front embedded in a vigorous westerly stream will approach and cross Tasmania on Saturday morning, with high pressure system to build to the north of the state and extend a ridge over Tasmania in the evening. The high will move slowly move to the north of Tasmania on Sunday and over the northern Tasman Sea by Sunday evening, with another cold front to approach and cross the state on Monday morning. On Tuesday a ridge of high pressure is expected to extend over Tasmania, with a low pressure system to move from central Australia over southern New South Wales.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sterile Island Temperature Statistics View More

August Temperature

Cape Bruny (14km)

  • Lowest 5 August, 2026

    4.7 °C

  • Average August

    10.2 °C

  • Highest 19 August, 2026

    17 °C

Climate (2021–2026)

Cape Bruny (14km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    12.5 °C

  • Average High 2021–2026

    16.5 °C
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