Flat Rock Weather Forecast

    • 10
    • 17

    Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 10
    • 19

    Shower or two

    • 10
    • 19

    Shower or two

    • 9
    • 17

    Showers

    • 9
    • 16

    Shower or two. Windy

    • 8
    • 15

    Showers. Windy

Today 20 Sep South West

Mostly clear. Light winds.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Variable about 10 knots becoming northeast to southeasterly 10 to 15 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres inshore, increasing to 4 metres offshore east of Cape Leeuwin.
Weather
Partly cloudy.
Weather Situation
A ridge builds over the southwest with a west coast trough today. The trough moves eastward on Tuesday as a cold front passes to the south of the State Monday night and Tuesday. The next cold front reaches the southwest corner on Thursday.
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  • Temperature Forecast Bureau of Meteorology

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Flat Rock Temperature Statistics View More

September Temperature

Windy Harbour (4km)

  • Lowest 6 September, 2026

    0.3 °C

  • Average September

    15.9 °C

  • Highest 17 September, 2026

    27.5 °C

Climate (2021–2026)

Windy Harbour (4km)

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  • Average Low 2021–2026

    11 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    20.4 °C
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