Slope Island Weather Forecast

    • 22
    • 25

    Sunny

    • 22
    • 24

    Partly cloudy

    • 22
    • 24

    Cloud clearing

    • 22
    • 25

    Mostly sunny

    • 22
    • 27

    Mostly sunny

    • 23
    • 32

    Shower or two

    • 25
    • 30

    Shower or two

Today 21 Mar Gascoyne

Mostly sunny. The chance of a thunderstorm in the north. Winds northwest to northeasterly 15 to 20 km/h tending northeast to southeasterly 20 to 30 km/h in the late afternoon.

Gascoyne Coastal Waters

Cape Cuvier to Kalbarri
Wind
Southerly 20 to 25 knots increasing to 20 to 30 knots in the late afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
South to southwesterly 1 to 1.5 metres inshore, increasing to 2 metres offshore.
Weather
Mostly sunny.
Weather Situation
A ridge over central and southeastern parts of the state will slowly weaken this weekend. A west coast trough moves inland this afternoon, ahead of a weak cold front brushing past the south coast on Sunday. A new ridge arrives in the southwest on Sunday, building east along the south coast from Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Slope Island Temperature Statistics View More

March Temperature

Shark Bay Airport (27km)

  • Lowest 11 March, 2026

    19.1 °C

  • Average March

    26.7 °C

  • Highest 6 March, 2026

    42.6 °C

Climate (2021–Present)

Shark Bay Airport (27km)

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  • Average Low 2021–2026

    16.8 °C

  • Average 2021–2026

    22.3 °C

  • Average High 2021–2026

    29.6 °C
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