Thomson Bay Weather Forecast

    • 14
    • 20

    Clear

    • 15
    • 20

    Showers increasing

    • 12
    • 17

    Partly cloudy

    • 13
    • 18

    Shower or two

    • 14
    • 19

    Showers. Becoming windy

    • 14
    • 18

    Shower or two. Wind easing

    • 14
    • 18

    Showers

Today 30 Aug Lower West

Clear. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Clear.
Weather Situation
A broad trough near the west coast will move east on Monday ahead of a weak cold front moving over the area Monday night. A weak ridge will then extend over local waters in wake of the cold front. Another weak cold front will brush past in the middle of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thomson Bay Temperature Statistics View More

August Temperature

Rottnest Island (4km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    15.5 °C

  • Highest 16 August, 2026

    23.2 °C

Climate (2021–2026)

Rottnest Island (4km)

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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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