Mary Street Lagoon Weather Forecast

    • 17
    • 27

    Sunny

    • 17
    • 28

    Sunny

    • 17
    • 30

    Sunny

    • 20
    • 30

    Sunny

    • 19
    • 32

    Sunny

    • 17
    • 34

    Sunny

    • 23
    • 37

    Mostly sunny

Today 8 Dec Mandurah

Sunny. Winds southwesterly 25 to 40 km/h tending southerly 20 to 30 km/h in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A new ridge to the south of the Local Waters will persist through Tuesday, before a west coast trough deepens on Wednesday. The west coast trough will push inland on Thursday ahead of a new ridge approaching from the west.
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Mary Street Lagoon Temperature Statistics View More

December Temperature

Mandurah (0km)

  • Lowest 4 December, 2025

    16.1 °C

  • Average December

    21.2 °C

  • Highest 1 December, 2025

    35.7 °C

Climate (2020–Present)

Mandurah (0km)

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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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