Thomson Bay Weather Forecast

    • 19
    • 25

    Sunny

    • 21
    • 28

    Sunny

    • 22
    • 30

    Sunny

    • 21
    • 26

    Mostly sunny

    • 20
    • 25

    Partly cloudy

    • 20
    • 26

    Sunny

    • 19
    • 26

    Becoming windy. Sunny

Today 16 Mar Lower West

Mostly sunny. Winds east to southeasterly 20 to 30 km/h tending south to southeasterly in the late afternoon then tending east to southeasterly 15 to 20 km/h in the late evening. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the morning then tending southeasterly 10 to 15 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning, then increasing to 1 to 1.5 metres around midday.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thomson Bay Temperature Statistics View More

March Temperature

Rottnest Island (4km)

  • Lowest 11 March, 2026

    15.1 °C

  • Average March

    21.6 °C

  • Highest 4 March, 2026

    29.1 °C

Climate (2021–Present)

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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