South Island Weather Forecast

    • 21
    • 23

    Cloudy

    • 20
    • 23

    Partly cloudy

    • 19
    • 23

    Partly cloudy

    • 19
    • 24

    Partly cloudy

    • 19
    • 24

    Cloudy

    • 15
    • 22

    Sunny

    • 15
    • 22

    Sunny

Today 4 Aug Pilbara

Partly cloudy. Very high chance of rain in the far west, becoming less likely in the late afternoon and evening. Near zero chance of rain elsewhere. The chance of a thunderstorm in the southwest. Thunderstorms possibly severe with heavy rain which may lead to flash flooding in the far west. Winds east to northeasterly 15 to 20 km/h tending northwest to northeasterly in the middle of the day then becoming light in the evening. Daytime maximum temperatures 25 to 32.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
North to northeasterly about 10 knots increasing to 10 to 15 knots in the morning then becoming variable about 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Partly cloudy. 50% chance of rain west of Onslow, near zero chance elsewhere. The chance of a thunderstorm west of Onslow.
Weather Situation
A cloud band brings unseasonal rains to western Pilbara till Wednesday, and again later in the week as a trough near the west Pilbara coast slowly moves inland this week. An easterly flow will persist over the rest of the area.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Island Temperature Statistics View More

August Temperature

Onslow Airport (31km)

  • Lowest 1 August, 2026

    11.9 °C

  • Average August

    21.4 °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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