Castle Bay Weather Forecast

    • 10
    • 18

    Showers

    • 12
    • 20

    Showers

    • 10
    • 17

    Showers easing

    • 11
    • 20

    Showers increasing

    • 12
    • 18

    Showers easing

    • 9
    • 17

    Shower or two

    • 8
    • 17

    Partly cloudy

Today 10 Jun South West

Cloudy. High chance of showers in the west, medium chance elsewhere. Light winds becoming north to northwesterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Overnight temperatures falling to between 3 and 8 with daytime temperatures reaching between 13 and 17.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Westerly 10 to 15 knots tending northwesterly in the morning.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 to 5 metres, decreasing to 2.5 to 3 metres during the afternoon.
Weather
Cloudy. 90% chance of showers.
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

    14.6 °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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