Rocky Bay Weather Forecast

    • 17
    • 27

    Windy. Sunny

    • 17
    • 27

    Wind easing. Sunny

    • 20
    • 28

    Sunny

    • 21
    • 27

    Mostly sunny

    • 19
    • 26

    Sunny

    • 20
    • 25

    Sunny

    • 19
    • 25

    Mostly sunny

Today 29 Dec Lower West

Sunny. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds tending southeast to southwesterly in the morning then becoming southeasterly 15 to 20 knots in the late evening.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A ridge is along the south coast, driving a southeasterly airstream through southern and central parts. A trough will develop down the west coast from Tuesday, moving into inland western parts Thursday or Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rocky Bay Temperature Statistics View More

December Temperature

Rottnest Island (2km)

  • Lowest 21 December, 2025

    14.6 °C

  • Average December

    21.5 °C

  • Highest 25 December, 2025

    40.9 °C

Climate (2020–Present)

Rottnest Island (2km)

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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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