Cotter River Weather Forecast

    • 12
    • 22

    Storm

    • 12
    • 21

    Storm

    • 12
    • 22

    Storm

    • 12
    • 25

    Partly cloudy

    • 10
    • 23

    Partly cloudy

    • 9
    • 23

    Partly cloudy

    • 9
    • 28

    Sunny

Today 11 Dec South West Slopes

Partly cloudy. Medium chance of showers, most likely in the afternoon and early evening. A thunderstorm likely, possibly severe with damaging winds. Winds easterly 20 to 30 km/h. Overnight temperatures falling to between 11 and 15 with daytime temperatures reaching 23 to 31.

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Cotter River Temperature Statistics View More

December Temperature

Tuggeranong (Isabella Plains) (23km)

  • Lowest 2 December, 2025

    1.2 °C
  • Average December

    19 °C
  • Highest 5 December, 2025

    34.6 °C

Climate (2020–Present)

Tuggeranong (Isabella Plains) (23km)

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  • Average Low 2020–2025

    7.1 °C
  • Average 2020–2025

    13.4 °C
  • Average High 2020–2025

    20.6 °C
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