Brother and Sister Weather Forecast

    • 6
    • 13

    Shower or two

    • 8
    • 13

    Partly cloudy

    • 9
    • 15

    Showers increasing

    • 5
    • 10

    Showers easing

    • 5
    • 12

    Shower or two

    • 8
    • 12

    Shower or two

    • 7
    • 13

    Shower or two

Today 11 Jul South East

Partly cloudy. High chance of showers in the far south, medium chance elsewhere. Snow falling above 600 metres. Possible small hail. Winds westerly 25 to 40 km/h.

Storm Bay

Wind
Westerly 20 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
Weather
Partly cloudy. 50% chance of showers, with possible small hail later this evening.
Weather Situation
A cold front crossing the state today will clear to the east into the Tasman Sea, followed by a ridge of high pressure which is forecast to extend southwards over Tasmania from a high centred over mainland Australia on Saturday. A northwesterly airstream is expected to develop during Saturday afternoon, ahead of a stronger cold front forecast to cross the state during Sunday afternoon and evening. A ridge over mainland Australia is expected to maintain a westerly flow over the state on Monday, continuing into Tuesday, with weak embedded troughs or fronts moving in from the west at times.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brother and Sister Temperature Statistics View More

July Temperature

Tasman Island (26km)

  • Lowest 9 July, 2025

    6.4 °C

  • Average July

    9.5 °C

  • Highest 6 July, 2025

    13.9 °C

Climate (2020–Present)

Tasman Island (26km)

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  • Average Low 2020–2025

    9.4 °C

  • Average 2020–2025

    11.5 °C

  • Average High 2020–2025

    14.6 °C
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