Cape Heirisson Weather Forecast

    • 15
    • 22

    Clear

    • 16
    • 21

    Sunny

    • 17
    • 22

    Partly cloudy

    • 19
    • 22

    Partly cloudy

    • 17
    • 21

    Mostly sunny

    • 17
    • 22

    Shower or two

    • 17
    • 20

    Shower or two

Today 31 Aug Gascoyne

Clear. Winds east to southeasterly 15 to 20 km/h.

Gascoyne Coastal Waters

Cape Cuvier to Kalbarri
Wind
South to southeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres inshore by early evening.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Clear.
Weather Situation
A strong high pressure system in the Bight is moving east, with the ridge across southern WA weakening on Monday. A west coast trough will form on Monday as a weak cold front brushes past the southwest coast. A patchy cloud band will develop over central and southern WA on Tuesday, with the west coast trough moving inland on Wednesday ahead of a series of cold fronts in the second half of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Heirisson Temperature Statistics View More

August Temperature

Shark Bay Airport (25km)

  • Lowest 1 August, 2025

    5.9 °C

  • Average August

    17.6 °C

  • Highest 17 August, 2025

    30.6 °C

Climate (2020–Present)

Shark Bay Airport (25km)

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  • Average Low 2020–2025

    16.8 °C

  • Average 2020–2025

    22.3 °C

  • Average High 2020–2025

    29.6 °C
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