Secret Harbour Weather Forecast

    • 20
    • 34

    Sunny

    • 19
    • 35

    Sunny

    • 25
    • 37

    Possible storm

    • 25
    • 35

    Mostly sunny

    • 21
    • 28

    Partly cloudy

    • 19
    • 29

    Mostly sunny

    • 19
    • 28

    Partly cloudy

Today 12 Dec Mandurah

Sunny. Winds south to southeasterly 20 to 30 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 25 knots, reaching up to 30 knots in the late afternoon. Winds turning southeasterly 15 to 20 knots in the evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Secret Harbour Temperature Statistics View More

December Temperature

Mandurah (13km)

  • Lowest 4 December, 2025

    16.1 °C

  • Average December

    22 °C

  • Highest 1 December, 2025

    35.7 °C

Climate (2020–Present)

Mandurah (13km)

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  • Average Low 2020–2025

    15.1 °C

  • Average 2020–2025

    19.2 °C

  • Average High 2020–2025

    23.8 °C
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