Sterile Island Weather Forecast

    • 4
    • 13

    Windy

    • 7
    • 15

    Shower

    • 3
    • 17

    Cloudy

    • 6
    • 21

    Shower

    • 11
    • 18

    Shower

    • 8
    • 13

    Shower

    • 6
    • 14

    Cloudy

Today 21 Sep South East

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Snow falling above 400 metres. The chance of a thunderstorm in the far south in the late afternoon and evening. Possible small hail. Winds westerly 35 to 50 km/h. Overnight temperatures falling to between 1 and 7 with daytime temperatures reaching between 9 and 14.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 30 to 40 knots.
Seas
3 to 4 metres.
1st Swell
Southwesterly 4 to 6 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the late afternoon and evening. Possible small hail.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sterile Island Temperature Statistics View More

September Temperature

Cape Bruny (14km)

  • Lowest 16 September, 2026

    4.5 °C

  • Average September

    11.5 °C

  • Highest 19 September, 2026

    21.4 °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

    16.6 °C
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