Brunswick River - Mullumbimby Weather Forecast

    • 14
    • 24

    Mostly sunny

    • 14
    • 24

    Shower or two

    • 15
    • 21

    Showers easing

    • 13
    • 21

    Cloudy

    • 14
    • 23

    Partly cloudy

    • 15
    • 26

    Mostly sunny

    • 16
    • 24

    Shower or two

Today 4 Sep Northern Rivers

Mostly sunny. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Light winds becoming northeasterly 15 to 20 km/h during the afternoon then becoming light during the evening. Overnight temperatures falling to between 8 and 11 with daytime temperatures reaching the low to mid 20s.

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Brunswick River - Mullumbimby Temperature Statistics View More

September Temperature

Cape Byron (16km)

  • Lowest 1 September, 2025

    12.3 °C

  • Average September

    16.1 °C

  • Highest 2 September, 2025

    21 °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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