Twin Rocks Weather Forecast

    • 20
    • 25

    Partly cloudy

    • 19
    • 24

    Becoming windy. Partly cloudy

    • 18
    • 27

    Windy. Sunny

    • 18
    • 25

    Becoming windy. Sunny

    • 18
    • 25

    Windy. Mostly sunny

    • 16
    • 25

    Becoming windy. Mostly sunny

    • 18
    • 25

    Windy. Sunny

Today 16 Dec Lower West

Mostly sunny. The chance of fog and smoke haze near the coast. Winds west to southwesterly 20 to 30 km/h. Daytime maximum temperatures 30 to 36.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly below 10 knots tending southwesterly 10 to 15 knots in the morning.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy. Patchy fog this morning with reduced visibility.
Weather Situation
A weak cold front will brush past the southwest coast today, followed by a new ridge building across the southwest coast from Wednesday. A new west coast trough will form on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Twin Rocks Temperature Statistics View More

December Temperature

Rottnest Island (5km)

  • Lowest 4 December, 2025

    16.7 °C

  • Average December

    21.6 °C

  • Highest 14 December, 2025

    37.1 °C

Climate (2020–Present)

Rottnest Island (5km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    22.8 °C
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