The Brothers Weather Forecast

    • 22
    • 34

    Sunny

    • 23
    • 32

    Sunny

    • 21
    • 30

    Mostly sunny

    • 20
    • 29

    Sunny

    • 19
    • 29

    Partly cloudy

    • 18
    • 30

    Sunny

    • 18
    • 26

    Mostly sunny

Today 18 Mar Perth

Sunny. Light winds becoming south to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots becoming south to southwesterly 10 to 15 knots in the early afternoon then becoming south to southeasterly about 10 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A ridge lies over southeastern parts of the State. A trough will remain near the west coast for much of the week before moving inland on Saturday as a new ridge pushes in from the southwest.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Brothers Temperature Statistics View More

March Temperature

Garden Island (9km)

  • Lowest 1 March, 2026

    14.3 °C

  • Average March

    22.2 °C

  • Highest 4 March, 2026

    32 °C

Climate (2021–Present)

Garden Island (9km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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