Brother and Sister Weather Forecast

    • 13
    • 19

    Shower or two

    • 12
    • 17

    Shower or two

    • 10
    • 17

    Partly cloudy

    • 10
    • 16

    Partly cloudy

    • 9
    • 17

    Mostly sunny

    • 11
    • 18

    Partly cloudy

    • 10
    • 17

    Shower or two

Today 17 May South East

Cloudy. Very high chance of showers, most likely in the afternoon and evening. Winds north to northwesterly 15 to 25 km/h becoming light in the morning. Overnight temperatures falling to between 9 and 13 with daytime temperatures reaching between 13 and 18.

Storm Bay

Wind
Northerly 10 to 15 knots becoming variable below 10 knots in the morning.
Seas
Below 1 metre.
Weather
Cloudy. 80% chance of showers.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brother and Sister Temperature Statistics View More

May Temperature

Tasman Island (26km)

  • Lowest 8 May, 2026

    4.7 °C

  • Average May

    13.1 °C

  • Highest 1 May, 2026

    21.4 °C

Climate (2021–Present)

Tasman Island (26km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.5 °C
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