Margaret River Mouth Weather Forecast

    • 12
    • 18

    Showers easing

    • 13
    • 19

    Shower or two

    • 10
    • 19

    Partly cloudy

    • 9
    • 23

    Mostly sunny

    • 14
    • 25

    Sunny

    • 15
    • 22

    Possible shower

    • 13
    • 20

    Showers

Today 12 Sep South West

Partly cloudy. Very high chance of showers, most likely in the early morning. The chance of a thunderstorm in the early morning, possibly severe with damaging winds. Winds northwesterly 25 to 35 km/h tending westerly in the early morning then becoming light in the evening. Overnight temperatures falling to around 11 with daytime temperatures reaching around 19.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Northwesterly 25 to 30 knots tending westerly 20 to 30 knots before dawn then decreasing to 15 to 25 knots in the middle of the day. Winds reaching up to 35 knots offshore east of Cape Leeuwin early in the morning.
Seas
2 to 3 metres, decreasing to 1 to 2 metres around midday.
1st Swell
West to southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore during the morning.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the early morning with possible squalls.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Margaret River Mouth Temperature Statistics View More

September Temperature

Cape Leeuwin (46km)

  • Lowest 10 September, 2026

    10.6 °C

  • Average September

    15.2 °C

  • Highest 10 September, 2026

    21.9 °C

Climate (2021–2026)

Cape Leeuwin (46km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.7 °C
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