Sterile Island Weather Forecast

    • 10
    • 22

    Shower

    • 9
    • 17

    Shower

    • 8
    • 19

    Partly cloudy

    • 10
    • 27

    Partly cloudy

    • 13
    • 20

    Cloudy

    • 10
    • 23

    Partly cloudy

    • 12
    • 25

    Shower

Today 21 Jan South East

Cloudy. Very high chance of showers, most likely in the afternoon and evening. Light winds becoming west to southwesterly 15 to 20 km/h in the morning then tending south to southwesterly 25 to 40 km/h in the early afternoon. Overnight temperatures falling to between 9 and 13 with daytime temperatures reaching between 18 and 23.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Northerly 10 to 15 knots shifting south to southwesterly 15 to 25 knots in the late morning and early afternoon. Winds reaching up to 30 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Weather
Cloudy. 80% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sterile Island Temperature Statistics View More

January Temperature

Cape Bruny (14km)

  • Lowest 11 January, 2026

    7.2 °C

  • Average January

    15.4 °C

  • Highest 5 January, 2026

    23.2 °C

Climate (2021–Present)

Cape Bruny (14km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    12.4 °C

  • Average High 2021–2026

    16.5 °C
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