South West Twin Island Weather Forecast

    • 17
    • 29

    Sunny

    • 16
    • 29

    Sunny

    • 17
    • 31

    Sunny

    • 18
    • 31

    Mostly sunny

    • 17
    • 30

    Sunny

    • 18
    • 31

    Sunny

    • 19
    • 32

    Mostly sunny

Today 11 Sep Pilbara

Sunny. Winds north to northeasterly 15 to 25 km/h tending north to northwesterly 20 to 30 km/h in the middle of the day then becoming light in the late evening. Daytime maximum temperatures in the low to mid 30s.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Sunny.
Weather Situation
A high pressure ridge is weakening through inland parts of northern WA whilst a trough extends through the inland Kimberley. A new ridge will strengthen into the Pilbara and west Kimberley waters during the weekend, bringing a freshening of southerly to westerly winds across the region.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South West Twin Island Temperature Statistics View More

September Temperature

Onslow Airport (19km)

  • Lowest 6 September, 2026

    15.3 °C

  • Average September

    22.6 °C

  • Highest 2 September, 2026

    32 °C

Climate (2021–2026)

Onslow Airport (19km)

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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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