Cockburn Sound Weather Forecast

    • 17
    • 29

    Sunny

    • 19
    • 34

    Sunny

    • 21
    • 40

    Sunny

    • 27
    • 39

    Sunny

    • 23
    • 28

    Partly cloudy

    • 18
    • 27

    Cloud clearing

    • 15
    • 28

    Sunny

Today 22 Dec Perth

Sunny. Winds southeasterly 20 to 30 km/h tending south to southwesterly 25 to 35 km/h in the middle of the day then tending southeasterly 15 to 25 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 25 knots tending southeasterly 15 to 20 knots before dawn then tending southeast to southwesterly 15 to 25 knots in the morning.
Seas
1 to 2 metres, decreasing to 1 metre during the morning, then increasing to 1.5 metres during the afternoon.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning.
Weather
Sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cockburn Sound Temperature Statistics View More

December Temperature

Garden Island (6km)

  • Lowest 21 December, 2025

    13.9 °C

  • Average December

    21.7 °C

  • Highest 14 December, 2025

    38.8 °C

Climate (2020–Present)

Garden Island (6km)

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  • Average Low 2020–2025

    15.2 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    23.4 °C
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