Margaret River Mouth Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 9
    • 22

    Mostly sunny

    • 13
    • 25

    Sunny

    • 16
    • 23

    Sunny morning. Shower or two

    • 13
    • 20

    Showers

    • 11
    • 18

    Shower or two

    • 10
    • 19

    Partly cloudy

Today 14 Sep South West

Cloudy. The chance of fog inland early this morning. Slight chance of a shower in the morning and early afternoon. Light winds becoming east to southeasterly 15 to 25 km/h in the early afternoon. Daytime maximum temperatures between 17 and 20.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Southerly 10 to 15 knots turning east to southeasterly 15 to 20 knots during the morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 3 metres inshore, increasing to 4 metres offshore.
Weather
Cloudy.
Weather Situation
A weak front will move to the east on Sunday night along the southwest coast and dissipate today. A trough over the Goldfields and Interior will move west across the South West Land Division and Gascoyne on Monday as a high strengthens in the Bight, reaching the west coast on Tuesday. The trough will move back inland later Thursday ahead of another cold front.
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

    15.6 °C

  • Highest 11 September, 2026

    23.7 °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

    20.8 °C
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