Cowalellup Weather Forecast

    • 7
    • 17

    Cloudy

    • 6
    • 20

    Fog

    • 8
    • 21

    Cloudy

    • 6
    • 22

    Partly cloudy

    • 7
    • 26

    Sunny

    • 10
    • 28

    Partly cloudy

    • 8
    • 28

    Partly cloudy

Today 19 Sep South Coastal

Cloudy. Medium chance of showers, becoming less likely this afternoon. Winds westerly 15 to 20 km/h tending southwesterly 15 to 25 km/h in the morning then becoming light in the evening. Daytime maximum temperatures around 18.

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Cowalellup Temperature Statistics View More

September Temperature

Jacup (53km)

  • Lowest 8 September, 2025

    1.7 °C

  • Average September

    10.3 °C

  • Highest 13 September, 2025

    23.9 °C

Climate (2020–Present)

Jacup (53km)

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  • Average Low 2020–2025

    9.5 °C

  • Average 2020–2025

    14.8 °C

  • Average High 2020–2025

    22.3 °C
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