Thomson Bay Weather Forecast

    • 18
    • 24

    Sunny

    • 19
    • 24

    Sunny

    • 19
    • 23

    Mostly sunny

    • 18
    • 23

    Sunny

    • 19
    • 23

    Shower or two

    • 17
    • 22

    Shower or two

    • 16
    • 21

    Partly cloudy

Today 13 Apr Lower West

Mostly sunny. The chance of a thunderstorm in the north this afternoon. Light winds becoming south to southwesterly 15 to 20 km/h in the middle of the day then tending south to southeasterly in the evening. Daytime maximum temperatures around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Sunny.
Weather Situation
A ridge extends over the Local Waters, while a a west coast trough has moved onshore. A weak cold front will brush the southwest of the State late tonight while another ridge develops over the Local Waters in its wake. The west coast trough will remain near Local Waters throughout the first half of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thomson Bay Temperature Statistics View More

April Temperature

Rottnest Island (4km)

  • Lowest 10 April, 2026

    15 °C

  • Average April

    19.3 °C

  • Highest 3 April, 2026

    25.9 °C

Climate (2021–Present)

Rottnest Island (4km)

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  • Average Low 2021–2026

    16 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.7 °C
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