South Island Weather Forecast

    • 20
    • 23

    Partly cloudy

    • 18
    • 24

    Partly cloudy

    • 18
    • 23

    Sunny

    • 18
    • 23

    Sunny

    • 18
    • 22

    Partly cloudy

    • 17
    • 23

    Sunny

    • 18
    • 23

    Sunny

Today 22 Aug Pilbara

Mostly sunny. Slight chance of a shower in the southwest, near zero chance elsewhere. Winds northeast to southeasterly 15 to 25 km/h tending west to northwesterly 20 to 30 km/h in the middle of the day then tending west to southwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures 29 to 34.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Variable below 10 knots becoming southwesterly 10 to 15 knots in the early afternoon. Winds reaching up to 20 knots offshore west of Onslow in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres about offshore western waters.
Weather
Mostly sunny.
Weather Situation
A broad area of low pressure lies over the Kimberley with a trough extending into the Pilbara. The trough will move southeast during the weekend as a new ridge develops to the south. Another trough will extend back into the Pilbara on Tuesday as the ridge weakens and moves east.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Island Temperature Statistics View More

August Temperature

Onslow Airport (31km)

  • Lowest 10 August, 2026

    9.5 °C

  • Average August

    21.3 °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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