Greta Weather Forecast

    • 10
    • 26

    Partly cloudy

    • 9
    • 31

    Sunny

    • 12
    • 29

    Mostly sunny

    • 15
    • 23

    Cloudy

    • 13
    • 26

    Partly cloudy

    • 14
    • 31

    Mostly sunny

    • 15
    • 30

    Shower or two

Today 29 Dec Hunter

Mostly sunny. Winds southeast to southwesterly 15 to 20 km/h becoming light before dawn then becoming southeasterly 20 to 30 km/h in the morning. Overnight temperatures falling to between 8 and 12 with daytime temperatures reaching 23 to 29.

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Greta Temperature Statistics View More

December Temperature

Cessnock Airport (13km)

  • Lowest 27 December, 2025

    5.5 °C

  • Average December

    22.8 °C

  • Highest 21 December, 2025

    42.9 °C

Climate (2020–Present)

Cessnock Airport (13km)

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  • Average Low 2020–2025

    11.1 °C

  • Average 2020–2025

    17.1 °C

  • Average High 2020–2025

    24.3 °C
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