Flat Island Weather Forecast

    • 20
    • 25

    Clear

    • 22
    • 25

    Sunny

    • 22
    • 24

    Sunny

    • 22
    • 25

    Partly cloudy

    • 23
    • 26

    Partly cloudy

    • 24
    • 26

    Sunny

    • 23
    • 25

    Sunny

Today 18 Sep Pilbara

Clear. Winds west to northwesterly 15 to 25 km/h.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Northwest to southwesterly about 10 knots, reaching up to 20 knots west of Onslow in the late evening.
Seas
Below 0.5 metres, increasing to below 1 metre west of Onslow.
1st Swell
West to southwesterly around 1 metre inshore, increasing to 1 to 2 metres about offshore western waters.
Weather
Clear.
Weather Situation
Generally light winds, apart from the far western Pilbara waters where winds are fresh southerly until Saturday. A ridge is developing today, and will increase southeasterly winds through the remainder of the Pilbara and southwest Kimberley waters over the weekend into next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Flat Island Temperature Statistics View More

September Temperature

Thevenard Island (44km)

  • Lowest 12 September, 2025

    16.1 °C

  • Average September

    22.2 °C

  • Highest 13 September, 2025

    30.3 °C

Climate (2020–Present)

Thevenard Island (44km)

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  • Average Low 2020–2025

    22.4 °C

  • Average 2020–2025

    25.7 °C

  • Average High 2020–2025

    30.3 °C
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