Cornwallis Weather Forecast

    • 12
    • 22

    Cloudy

    • 13
    • 27

    Partly cloudy

    • 11
    • 33

    Partly cloudy

    • 14
    • 35

    Mostly sunny

    • 13
    • 22

    Shower or two

    • 11
    • 21

    Shower or two

    • 10
    • 24

    Partly cloudy

Today 23 Sep Sydney

Cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds easterly 20 to 30 km/h turning northeasterly 15 to 25 km/h in the evening.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cornwallis Temperature Statistics View More

September Temperature

Richmond RAAF Base (3km)

  • Lowest 18 September, 2026

    2.9 °C

  • Average September

    16.5 °C

  • Highest 21 September, 2026

    35.4 °C

Climate (2021–2026)

Richmond RAAF Base (3km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    17.6 °C

  • Average High 2021–2026

    24.7 °C
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