Armstrong Rock Weather Forecast

    • 20
    • 25

    Sunny

    • 19
    • 23

    Sunny

    • 19
    • 24

    Sunny

    • 19
    • 24

    Mostly sunny

    • 19
    • 23

    Sunny

    • 18
    • 23

    Shower or two

    • 18
    • 22

    Shower or two

Today 12 Apr Lower West

Mostly sunny. The chance of a thunderstorm in the north. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly about 10 knots increasing to 10 to 15 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A ridge extends over the Local Waters, while a a west coast trough has moved onshore. A weak cold front will brush the southwest of the State late today while another ridge develops over the Local Waters in its wake. The west coast trough will remain near Local Waters throughout the first half of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Armstrong Rock Temperature Statistics View More

April Temperature

Rottnest Island (1km)

  • Lowest 10 April, 2026

    15 °C

  • Average April

    19.1 °C

  • Highest 3 April, 2026

    25.9 °C

Climate (2021–Present)

Rottnest Island (1km)

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  • Average Low 2021–2026

    16 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.7 °C
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