Cathedral Rocks Weather Forecast

    • 13
    • 19

    Sunny

    • 14
    • 21

    Sunny

    • 15
    • 19

    Showers. Windy

    • 13
    • 17

    Shower or two

    • 13
    • 18

    Showers easing

    • 14
    • 18

    Shower or two

    • 14
    • 19

    Partly cloudy

Today 15 Aug Lower West

Sunny. Winds east to northeasterly 15 to 20 km/h tending north to northeasterly in the middle of the day then becoming light in the early afternoon. Daytime maximum temperatures in the low 20s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northeasterly 10 to 15 knots becoming variable below 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Sunny.
Weather Situation
A broad ridge of high pressure along the south coast will dominate the weather pattern for the remainder of the week. A cold front will move over the South West Land Division on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cathedral Rocks Temperature Statistics View More

August Temperature

Rottnest Island (5km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    14.7 °C

  • Highest 3 August, 2026

    20.4 °C

Climate (2021–2026)

Rottnest Island (5km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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