Mary Street Lagoon Weather Forecast

    • 12
    • 20

    Mostly clear

    • 15
    • 19

    Possible storm, heavy falls

    • 13
    • 18

    Showers. Possible storm

    • 10
    • 16

    Shower or two

    • 10
    • 17

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 10
    • 17

    Showers

Today 18 Aug Mandurah

Mostly clear. Winds northwesterly 15 to 20 km/h tending northerly 15 to 25 km/h in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
North to northwesterly about 10 knots increasing to 15 to 20 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A cold front moves over the area on Tuesday, with a southwesterly airstream behind the front easing later Wednesday. On Thursday a ridge develops over the west coast and persists until the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Street Lagoon Temperature Statistics View More

August Temperature

Mandurah (0km)

  • Lowest 15 August, 2025

    6.9 °C

  • Average August

    14.6 °C

  • Highest 13 August, 2025

    21.5 °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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