South Island Weather Forecast

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    • 23

    Sunny

    • 18
    • 24

    Sunny

    • 17
    • 25

    Sunny

    • 19
    • 25

    Sunny

    • 18
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    Sunny

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    Sunny

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    Sunny

Today 20 Jul Pilbara

Sunny. Winds northeast to southeasterly 15 to 25 km/h tending southeast to southwesterly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the mid to high 20s.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Variable about 10 knots, reaching up to 20 knots west of Onslow in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Sunny.
Weather Situation
A ridge over central Australia maintains a moderate east to southeasterly flow over most of the north. Winds freshen mid next week as a new ridge develops to the south and strengthens.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Island Temperature Statistics View More

July Temperature

Onslow Airport (31km)

  • Lowest 4 July, 2026

    11.3 °C

  • Average July

    19.7 °C

  • Highest 11 July, 2026

    29.5 °C

Climate (2021–2026)

Onslow Airport (31km)

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  • Average Low 2021–2026

    20.5 °C

  • Average 2021–2026

    25.8 °C

  • Average High 2021–2026

    32.8 °C
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