Castle Bay Weather Forecast

    • 10
    • 19

    Shower or two

    • 13
    • 19

    Showers

    • 8
    • 16

    Showers easing

    • 7
    • 17

    Shower or two

    • 9
    • 17

    Shower or two

    • 9
    • 17

    Possible shower

    • 9
    • 17

    Possible shower

Today 13 Jun South West

Partly cloudy. The chance of morning frost in the north. Medium chance of showers near the Southwest Capes, slight chance elsewhere. The chance of a thunderstorm near the south coast in the evening. Winds northerly 15 to 25 km/h turning northwesterly 20 to 30 km/h in the middle of the day. Daytime maximum temperatures between 15 and 18.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Northwesterly 15 to 20 knots, reaching up to 25 knots offshore in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly 1 to 2 metres inshore, increasing to 2 to 3 metres offshore.
Weather
Cloudy.
Weather Situation
A weak high pressure system gives way to a cold front moving through today. Another ridge will extend over central parts of the State on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castle Bay Temperature Statistics View More

June Temperature

Cape Naturaliste (8km)

  • Lowest 5 June, 2026

    8.8 °C

  • Average June

    14.4 °C

  • Highest 7 June, 2026

    22.1 °C

Climate (2021–Present)

Cape Naturaliste (8km)

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  • Average Low 2021–2026

    13.2 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    22.7 °C
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