Cottesloe Beach Weather Forecast

    • 6
    • 17

    Possible morning shower

    • 7
    • 18

    Mostly sunny

    • 8
    • 18

    Sunny

    • 8
    • 21

    Mostly sunny

    • 9
    • 22

    Sunny

    • 10
    • 23

    Sunny

    • 13
    • 20

    Showers

Today 11 Aug Perth

Partly cloudy. Areas of frost about the hills early this morning. Slight chance of a shower in the northwest early this morning. Near zero chance of rain elsewhere. Light winds becoming south to southwesterly 15 to 20 km/h in the morning then becoming light in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly 15 to 20 knots becoming east to southeasterly about 10 knots in the morning then becoming south to southwesterly in the middle of the day.
Seas
1 to 1.5 metres, decreasing below 1 metre during the morning.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A ridge will develop over local waters today and dominate the weather pattern until the end of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cottesloe Beach Temperature Statistics View More

August Temperature

Swanbourne (4km)

  • Lowest 2 August, 2026

    6.1 °C

  • Average August

    14.3 °C

  • Highest 3 August, 2026

    21.9 °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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