Brother and Sister Weather Forecast

    • 7
    • 16

    Cloudy

    • 11
    • 17

    Shower or two

    • 10
    • 20

    Cloud clearing

    • 10
    • 21

    Sunny

    • 12
    • 21

    Showers

    • 11
    • 19

    Shower or two

    • 10
    • 19

    Shower or two

Today 27 Oct South East

Cloudy. Medium chance of showers in the south, near zero chance elsewhere. Snow possible above 1000 metres. Winds west to northwesterly 25 to 35 km/h increasing to 25 to 40 km/h in the middle of the day. Overnight temperatures falling to between 2 and 6 with daytime temperatures reaching between 11 and 16.

Storm Bay

Wind
Westerly 15 to 25 knots turning northwesterly 10 to 15 knots in the late evening.
Seas
Around 1 metre.
Weather
Cloudy.
Weather Situation
A cool west to southwesterly airstream persists over Tasmania until Wednesday as a ridge of high pressure is expected to develop over Victoria, combined with a broad area of low pressure well to the south of Tasmania. The high is forecast to move eastwards over Bass Strait during Thursday and Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brother and Sister Temperature Statistics View More

October Temperature

Tasman Island (26 km)

  • Lowest 13 October, 2026

    4 °C

  • Average October

    11.9 °C

  • Highest 23 October, 2026

    28.3 °C

Climate (2021–2026)

Tasman Island (26 km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.7 °C
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