Castle Bay Weather Forecast

    • 9
    • 19

    Showers

    • 9
    • 22

    Shower or two

    • 10
    • 25

    Sunny

    • 11
    • 24

    Sunny

    • 12
    • 24

    Sunny

    • 13
    • 23

    Shower or two

    • 14
    • 22

    Showers easing

Today 25 Oct South West

Cloudy. High chance of showers in the south, medium chance elsewhere. Winds westerly 15 to 25 km/h.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots offshore in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A ridge of high pressure will remain over the west and south coasts while a trough moves north up the west coast. Winds will become fresh to strong at times along the west coast due to the trough. A low will develop inland along the trough, and move east on Wednesday, bringing fresh easterly winds over southeast coastal waters.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castle Bay Temperature Statistics View More

October Temperature

Cape Naturaliste (8 km)

  • Lowest 12 October, 2026

    6.1 °C

  • Average October

    15.1 °C

  • Highest 13 October, 2026

    23.3 °C

Climate (2021–2026)

Cape Naturaliste (8 km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    22.7 °C
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