Thomson Bay Weather Forecast

    • 10
    • 18

    Clear

    • 13
    • 20

    Sunny day. Showers increasing

    • 15
    • 18

    Showers easing

    • 14
    • 18

    Possible shower

    • 14
    • 18

    Shower or two

    • 14
    • 18

    Showers

    • 12
    • 16

    Showers easing. Wind easing

Today 2 Aug Lower West

Mostly sunny. Winds northeasterly 15 to 20 km/h becoming light in the early afternoon then becoming easterly 15 to 20 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to northeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge is moving east today. A trough will approach on Monday before moving east on Tuesday, followed by a cold front along the southwest coast. A weak ridge will briefly return on Wednesday, before weakening on Thursday ahead of the next cold front.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thomson Bay Temperature Statistics View More

August Temperature

Rottnest Island (4km)

  • Lowest 1 August, 2026

    13.6 °C

  • Average August

    15.3 °C

  • Highest

    –

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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