Castle Bay Weather Forecast

    • 18
    • 27

    Showers. Possible storm

    • 18
    • 25

    Showers. Becoming windy

    • 14
    • 21

    Shower or two. Windy

    • 11
    • 21

    Partly cloudy

    • 12
    • 22

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 13
    • 24

    Mostly sunny

Today 22 Apr South West

Cloudy. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm. Winds north to northwesterly 15 to 25 km/h becoming light in the evening.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Northwesterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm.
Weather Situation
A trough just inland from the west coast will move east during Wednesday, ahead of a cold front moving through in the morning and afternoon. A low pressure system will then move east near the south coast on Thursday, bringing strong to gale force winds.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castle Bay Temperature Statistics View More

April Temperature

Cape Naturaliste (8km)

  • Lowest 19 April, 2025

    9.8 °C

  • Average April

    18.1 °C

  • Highest 1 April, 2025

    28.4 °C

Climate (2020–Present)

Cape Naturaliste (8km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    17.2 °C

  • Average High 2020–2025

    22.7 °C
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