Clarence River - Ulmarra Weather Forecast

    • 21
    • 30

    Partly cloudy

    • 20
    • 31

    Partly cloudy

    • 19
    • 23

    Shower or two

    • 17
    • 23

    Cloudy

    • 16
    • 26

    Partly cloudy

    • 16
    • 27

    Cloudy

    • 15
    • 28

    Partly cloudy

Today 24 Dec Northern Rivers

Cloudy. Medium chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm, possibly severe with damaging winds and large hail. Light winds. Overnight temperatures falling to the low 20s with daytime temperatures reaching around 30.

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Clarence River - Ulmarra Temperature Statistics View More

December Temperature

Grafton (Agricultural Research and Advisory Station) (6km)

  • Lowest 3 December, 2025

    13.3 °C

  • Average December

    23.7 °C

  • Highest 21 December, 2025

    39.7 °C

Climate (2020–Present)

Grafton (Agricultural Research and Advisory Station) (6km)

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  • Average Low 2020–2025

    14.2 °C

  • Average 2020–2025

    19.2 °C

  • Average High 2020–2025

    25.8 °C
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