Cowalellup Weather Forecast

    • 11
    • 20

    Windy

    • 10
    • 19

    Shower

    • 8
    • 24

    Partly cloudy

    • 9
    • 22

    Shower

    • 10
    • 20

    Shower

    • 8
    • 22

    Shower

    • 9
    • 15

    Shower

Today 19 Sep South Coastal

Partly cloudy. Very high chance of showers in the west, medium chance elsewhere. Winds northwesterly 35 to 55 km/h turning westerly in the middle of the day then decreasing to 25 to 40 km/h in the late afternoon. Daytime maximum temperatures between 16 and 22.

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Cowalellup Temperature Statistics View More

September Temperature

Jacup (53km)

  • Lowest 5 September, 2026

    1.1 °C

  • Average September

    13.4 °C

  • Highest 17 September, 2026

    32.9 °C

Climate (2021–2026)

Jacup (53km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    22.4 °C
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