Third Rocks Weather Forecast

    • 18
    • 21

    Possible shower

    • 14
    • 22

    Partly cloudy

    • 15
    • 26

    Sunny

    • 17
    • 27

    Mostly sunny

    • 18
    • 25

    Mostly sunny

    • 17
    • 22

    Partly cloudy

    • 15
    • 23

    Partly cloudy

Today 31 Mar Perth

Cloudy. Medium chance of showers in the morning and early afternoon. Winds southwesterly 15 to 25 km/h becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 15 to 20 knots becoming southerly below 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Third Rocks Temperature Statistics View More

March Temperature

Garden Island (8km)

  • Lowest 1 March, 2026

    14.3 °C

  • Average March

    22.2 °C

  • Highest 18 March, 2026

    36.6 °C

Climate (2021–Present)

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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