Flat Rock Weather Forecast

    • 10
    • 16

    Mostly sunny

    • 7
    • 18

    Mostly sunny

    • 10
    • 19

    Becoming windy. Partly cloudy

    • 9
    • 21

    Cloud clearing

    • 10
    • 22

    Becoming cloudy

    • 12
    • 21

    Shower or two

    • 12
    • 19

    Showers

Today 6 Sep South West

Mostly sunny. Winds southeasterly 25 to 35 km/h decreasing to 15 to 25 km/h in the late afternoon then becoming east to southeasterly and light in the late evening.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots offshore north of Cape Leeuwin during the afternoon and evening.
Seas
1 to 2 metres.
1st Swell
Southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Partly cloudy.
Weather Situation
A cold front moving along the south coast is weakening as it passes through the Esperance and Eucla coasts today. East to southeasterly winds will prevail over the coastal waters as a strong high develops in the Bight from Sunday night. The high will move east on Thursday as a west coast trough develops.
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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 4 September, 2026

    1.3 °C

  • Average September

    14.4 °C

  • Highest 3 September, 2026

    18.6 °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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