South Island Weather Forecast

    • 19
    • 22

    Partly cloudy

    • 20
    • 22

    Partly cloudy

    • 21
    • 23

    Partly cloudy

    • 20
    • 23

    Partly cloudy

    • 18
    • 24

    Partly cloudy

    • 17
    • 23

    Sunny

    • 17
    • 22

    Sunny

Today 19 Aug Pilbara

Partly cloudy. Slight chance of a shower in the far west, near zero chance elsewhere. Winds west to northwesterly 15 to 20 km/h becoming light in the late evening.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly below 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
Weather
Sunny.
Weather Situation
A ridge in the north has dissipated as a weak trough becomes established from the eastern Kimberley into the North Interior. A ridge over southern WA later in the week will push the trough to the Kimberley on Friday. Meanwhile, a patchy cloud band is developing across western Pilbara waters.
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  • Temperature Forecast Bureau of Meteorology

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South Island Temperature Statistics View More

August Temperature

Onslow Airport (31km)

  • Lowest 10 August, 2026

    9.5 °C

  • Average August

    20.9 °C

  • Highest 1 August, 2026

    30.4 °C

Climate (2021–2026)

Onslow Airport (31km)

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  • Average Low 2021–2026

    20.4 °C

  • Average 2021–2026

    25.8 °C

  • Average High 2021–2026

    32.8 °C
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