Cathedral Rocks Weather Forecast

    • 16
    • 21

    Possible shower

    • 15
    • 19

    Shower or two

    • 13
    • 18

    Shower or two. Windy

    • 12
    • 18

    Shower or two. Windy

    • 11
    • 19

    Partly cloudy

    • 11
    • 20

    Partly cloudy

    • 14
    • 23

    Partly cloudy

Today 21 Oct Lower West

Partly cloudy. The chance of fog inland early this morning. Medium chance of showers in the south, most likely late this afternoon and evening. Near zero chance of rain elsewhere. Light winds becoming northwesterly 15 to 25 km/h in the early morning then tending westerly 20 to 30 km/h in the morning. Daytime maximum temperatures in the low to mid 20s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to northwesterly about 10 knots increasing to 15 to 20 knots before dawn.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
1st Swell
West to southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A ridge over the Local Waters is weakening. A series of weak cold fronts will brush past the southwest coast from today until Saturday. A new ridge will develop over southern WA on the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cathedral Rocks Temperature Statistics View More

October Temperature

Rottnest Island (5 km)

  • Lowest 12 October, 2026

    10.8 °C

  • Average October

    16.9 °C

  • Highest 14 October, 2026

    27.4 °C

Climate (2021–2026)

Rottnest Island (5 km)

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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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