Mary Street Lagoon Weather Forecast

    • 14
    • 20

    Showers

    • 12
    • 19

    Showers increasing

    • 14
    • 18

    Showers easing

    • 10
    • 18

    Partly cloudy

    • 10
    • 20

    Sunny

    • 11
    • 21

    Sunny

    • 12
    • 20

    Mostly sunny

Today 28 Sep Mandurah

Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds north to northwesterly 15 to 20 km/h tending northwest to southwesterly 20 to 25 km/h in the morning then tending south to southwesterly 20 to 30 km/h in the early afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to northwesterly 10 to 15 knots turning south to southwesterly 15 to 20 knots in the early afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A trough and low are deepening over the South West Land Division. The low will slip to the south of the state and the trough will move over south east parts of the state later today. A cold front will approach on Tuesday and move through during Wednesday. A ridge will lie over the area on Thursday,
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Street Lagoon Temperature Statistics View More

September Temperature

Mandurah (0km)

  • Lowest 1 September, 2026

    10.4 °C

  • Average September

    16.7 °C

  • Highest 16 September, 2026

    26.9 °C

Climate (2021–2026)

Mandurah (0km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    19.1 °C

  • Average High 2021–2026

    23.8 °C
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