Little Armstrong Bay Weather Forecast

    • 21
    • 33

    Clear

    • 24
    • 36

    Mostly sunny

    • 19
    • 25

    Windy. Partly cloudy

    • 16
    • 23

    Windy. Partly cloudy

    • 16
    • 24

    Windy. Sunny

    • 17
    • 27

    Windy. Sunny

    • 17
    • 26

    Wind easing. Sunny

Today 24 Dec Lower West

Clear. Winds easterly 15 to 25 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 20 knots turning easterly 10 to 15 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A ridge over local waters will move inland on Thursday. A trough deepening offshore moves close to the west coast during Thursday before moving inland on Thursday evening, ahead of a weak cold front brushing the south coast on Friday. A new ridge will develop along the southwest coast later on Friday and expand east along the south coast on the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Little Armstrong Bay Temperature Statistics View More

December Temperature

Rottnest Island (1km)

  • Lowest 21 December, 2025

    14.6 °C

  • Average December

    21.4 °C

  • Highest 14 December, 2025

    37.1 °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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