Little Armstrong Bay Weather Forecast

    • 15
    • 19

    Rain

    • 12
    • 17

    Showers easing

    • 13
    • 18

    Cloudy

    • 12
    • 19

    Sunny

    • 15
    • 20

    Showers increasing. Windy

    • 13
    • 17

    Showers easing. Windy

    • 10
    • 16

    Partly cloudy

Today 9 Aug Lower West

Cloudy. Very high chance of rain. The chance of a thunderstorm inland early this evening with possible heavy falls. Winds northwesterly 15 to 25 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to northwesterly 10 to 15 knots tending west to southwesterly 15 to 20 knots in the evening.
Seas
1 to 1.5 metres.
1st Swell
Westerly 2 to 3 metres.
Weather
Cloudy. 80% chance of showers. Heavy falls possible.
Weather Situation
A cold front approaching from the west will move through the Local Waters early Sunday morning. A ridge will develop in the wake of the front later Sunday and will be the dominant pattern until Wednesday ahead of the next cold front.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Little Armstrong Bay Temperature Statistics View More

August Temperature

Rottnest Island (1km)

  • Lowest 4 August, 2025

    9.2 °C

  • Average August

    15.4 °C

  • Highest 7 August, 2025

    20.7 °C

Climate (2020–Present)

Rottnest Island (1km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    22.8 °C
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