Little Armstrong Bay Weather Forecast

    • 14
    • 21

    Sunny

    • 16
    • 19

    Showers. Windy

    • 13
    • 17

    Shower or two

    • 13
    • 18

    Showers easing

    • 13
    • 17

    Possible shower

    • 13
    • 18

    Cloud clearing

    • 12
    • 19

    Mostly sunny

Today 16 Aug Lower West

Sunny. Winds easterly 15 to 20 km/h turning northeasterly 20 to 30 km/h early in the morning. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching the low to mid 20s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
1st Swell
West to southwesterly 1.5 to 2 metres.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Little Armstrong Bay Temperature Statistics View More

August Temperature

Rottnest Island (1km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    14.9 °C

  • Highest 14 August, 2026

    20.8 °C

Climate (2021–2026)

Rottnest Island (1km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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