Castle Bay Weather Forecast

    • 12
    • 26

    Mostly sunny

    • 12
    • 27

    Sunny

    • 14
    • 28

    Sunny

    • 15
    • 25

    Mostly sunny

    • 12
    • 23

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 12
    • 22

    Partly cloudy

Today 9 Nov South West

Mostly sunny. Winds southeasterly 20 to 30 km/h.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Southerly 15 to 25 knots, reaching up to 30 knots offshore in the evening. Winds turning southeasterly 20 to 25 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon, then increasing to 1 to 2 metres by early evening.
1st Swell
Southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Sunny.
Weather Situation
A firm ridge of high pressure extends over southern WA as a trough deepens along the west coast, leading to fresh winds about parts of the west and southwest coasts this weekend and early next week. The trough persists until mid-week, then moving inland on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castle Bay Temperature Statistics View More

November Temperature

Cape Naturaliste (8km)

  • Lowest 2 November, 2025

    8.7 °C
  • Average November

    16 °C
  • Highest 4 November, 2025

    25.9 °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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