Third Rocks Weather Forecast

    • 5
    • 17

    Sunny

    • 7
    • 19

    Mostly sunny

    • 11
    • 20

    Mostly sunny

    • 11
    • 22

    Sunny

    • 13
    • 19

    Showers

    • 9
    • 17

    Cloudy

    • 11
    • 19

    Showers

Today 13 Aug Perth

Areas of frost and the chance of fog early this morning. Sunny afternoon. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly below 10 knots becoming south to southwesterly in the early afternoon then tending south to southeasterly 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
Weather Situation
A ridge will remain slow moving in the vicinity for the remainder of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Third Rocks Temperature Statistics View More

August Temperature

Garden Island (8km)

  • Lowest 11 August, 2026

    7.7 °C

  • Average August

    14.2 °C

  • Highest 3 August, 2026

    21.2 °C

Climate (2021–2026)

Garden Island (8km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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