Cottesloe Beach Weather Forecast

    • 11
    • 23

    Partly cloudy

    • 12
    • 23

    Mostly sunny

    • 15
    • 20

    Showers easing

    • 13
    • 20

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 14
    • 25

    Sunny

    • 15
    • 28

    Sunny

Today 10 Sep Perth

Partly cloudy. Winds northeasterly 15 to 25 km/h turning easterly 15 to 20 km/h in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots becoming easterly 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
Weather
Mostly sunny.
Weather Situation
A high in the Bight is directing east to northeasterly winds across the local waters. Winds will tend north to northwesterly on Friday ahead of a weak cold front passing through the area on Saturday, followed by another cold front brushing the southwest coast later on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cottesloe Beach Temperature Statistics View More

September Temperature

Swanbourne (4km)

  • Lowest 1 September, 2026

    9.6 °C

  • Average September

    15.1 °C

  • Highest 8 September, 2026

    20.9 °C

Climate (2021–2026)

Swanbourne (4km)

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  • Average Low 2021–2026

    14.5 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    24.3 °C
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