Mandalay Beach Weather Forecast

    • 12
    • 18

    Shower or two

    • 11
    • 16

    Showers

    • 11
    • 16

    Cloudy

    • 8
    • 18

    Cloudy

    • 8
    • 19

    Mostly sunny

    • 10
    • 20

    Possible shower

    • 13
    • 18

    Possible shower

Today 29 Sep South West

Partly cloudy. Very high chance of showers near the Southwest Capes, medium chance elsewhere. Winds westerly 20 to 30 km/h turning northwesterly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures around 18.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
West to northwesterly 15 to 25 knots, reaching up to 30 knots offshore east of Cape Leeuwin in the evening. Winds tending west to southwesterly in the evening.
Seas
Around 1 metre, increasing to 1.5 to 2.5 metres around midday.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A trough lies over southwest WA with a connected low south of the state. The trough is moving east as a ridge extends over the west coast. A cold front will cross the southwest corner of the state overnight on Tuesday with a ridge then dominating the synoptic pattern for the remainder of the working week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mandalay Beach Temperature Statistics View More

September Temperature

North Walpole (18km)

  • Lowest 1 September, 2026

    8.1 °C

  • Average September

    14.1 °C

  • Highest 17 September, 2026

    29.6 °C

Climate (2021–2026)

North Walpole (18km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    20.6 °C
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