Secret Harbour Weather Forecast

    • 19
    • 30

    Sunny

    • 17
    • 26

    Becoming windy. Mostly sunny

    • 15
    • 28

    Sunny

    • 18
    • 29

    Sunny

    • 19
    • 34

    Sunny

    • 25
    • 33

    Sunny

    • 23
    • 31

    Sunny

Today 20 Feb Mandurah

Sunny. Winds southwesterly 25 to 35 km/h tending southerly 20 to 25 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly 15 to 20 knots increasing to 20 to 25 knots in the late evening. Winds reaching up to 30 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A ridge is building over the southwest of the state and is directing southerly winds through local waters. The ridge will expand over southern WA during the weekend. A trough will move to the west coast on Monday from inland areas and deepen during next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Secret Harbour Temperature Statistics View More

February Temperature

Mandurah (13km)

  • Lowest 17 February, 2026

    15 °C

  • Average February

    24.2 °C

  • Highest 1 February, 2026

    37.3 °C

Climate (2021–Present)

Mandurah (13km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    19.2 °C

  • Average High 2021–2026

    23.8 °C
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