Little Armstrong Bay Weather Forecast

    • 14
    • 20

    Mostly sunny

    • 15
    • 20

    Showers increasing

    • 13
    • 17

    Partly cloudy

    • 13
    • 17

    Possible shower

    • 14
    • 19

    Showers

    • 13
    • 17

    Shower or two

    • 12
    • 18

    Showers

Today 30 Aug Lower West

Mostly sunny. Winds easterly 15 to 20 km/h tending northeasterly in the middle of the day then becoming light in the early afternoon. Daytime maximum temperatures in the low to mid 20s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly below 10 knots becoming south to southwesterly in the middle of the day.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Sunny.
Weather Situation
A ridge has become established the south. A trough will move close to the west coast on Sunday, before moving inland again ahead of a cold front sweeping through local waters later Monday. Another weak front will brush past the south coast middle of next week.
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

    15.4 °C

  • Highest 16 August, 2026

    23.2 °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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