The Basin Weather Forecast

    • 15
    • 19

    Partly cloudy

    • 14
    • 19

    Cloudy

    • 15
    • 20

    Partly cloudy

    • 16
    • 21

    Possible shower

    • 15
    • 19

    Shower or two

    • 13
    • 18

    Possible shower

    • 13
    • 19

    Partly cloudy

Today 18 Oct Lower West

Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds west to southwesterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures between 18 and 21.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 15 to 20 knots turning southwesterly 10 to 15 knots in the early afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
1st Swell
West to southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A cold front moves through the southwest coast early this morning. A ridge builds in its wake, ahead of another cold front approaching on Tuesday, crossing the local waters late Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Basin Temperature Statistics View More

October Temperature

Rottnest Island (3 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 (3 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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