Thomson Bay Weather Forecast

    • 15
    • 20

    Mostly sunny

    • 14
    • 20

    Sunny

    • 15
    • 20

    Possible shower

    • 15
    • 19

    Showers. Windy

    • 13
    • 18

    Shower or two. Wind easing

    • 14
    • 19

    Shower or two

    • 13
    • 18

    Becoming windy. Partly cloudy

Today 5 Oct Lower West

Sunny. Winds southwesterly 15 to 20 km/h becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly about 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge over the local waters is weakening, while a weak cold front brushes past the southwest coast today. A trough will extend along the west coast on Tuesday, moving inland on Wednesday ahead of an approaching cold front. A series of cold fronts will then cross southwest WA in the second half of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thomson Bay Temperature Statistics View More

October Temperature

Rottnest Island (4 km)

  • Lowest 2 October, 2026

    12.3 °C

  • Average October

    16.2 °C

  • Highest 2 October, 2026

    21.2 °C

Climate (2021–2026)

Rottnest Island (4 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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