Third Rocks Weather Forecast

    • 19
    • 30

    Mostly sunny

    • 19
    • 29

    Mostly sunny

    • 21
    • 32

    Mostly sunny

    • 22
    • 33

    Sunny

    • 21
    • 31

    Mostly sunny

    • 21
    • 30

    Cloud clearing

    • 20
    • 30

    Sunny

Today 15 Mar Perth

Partly cloudy. Winds easterly 20 to 30 km/h turning southeasterly 15 to 25 km/h in the late morning.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 10 to 15 knots tending southeast to southwesterly 15 to 20 knots in the middle of the day.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A strong ridge over southern WA brings moderate to fresh southeasterly winds, with a new trough deepening down the west coast towards the Local Waters on Monday.
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  • 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

    21.9 °C

  • Highest 4 March, 2026

    32 °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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