Mullumbimby Weather Forecast

    • 18
    • 27

    Partly cloudy

    • 21
    • 29

    Partly cloudy

    • 20
    • 31

    Shower or two

    • 21
    • 24

    Shower or two. Windy

    • 19
    • 24

    Possible shower

    • 17
    • 25

    Partly cloudy

    • 16
    • 28

    Mostly sunny

Today 13 Dec Northern Rivers

Partly cloudy. The chance of fog in the early morning. Slight chance of a shower in the morning and afternoon. The chance of a thunderstorm in the afternoon and early evening. Light winds becoming northeasterly 15 to 25 km/h in the early afternoon then becoming light in the evening. Overnight temperatures falling to around 18 with daytime temperatures reaching around 30.

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  • Temperature Forecast Bureau of Meteorology

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Mullumbimby Temperature Statistics View More

December Temperature

Cape Byron (16km)

  • Lowest 3 December, 2025

    16.6 °C
  • Average December

    23 °C
  • Highest 10 December, 2025

    31 °C

Climate (2020–Present)

Cape Byron (16km)

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  • Average Low 2020–2025

    17.3 °C
  • Average 2020–2025

    20.2 °C
  • Average High 2020–2025

    23.7 °C
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