Brunswick River - Mangrove Island Weather Forecast

    • 13
    • 21

    Partly cloudy

    • 12
    • 25

    Sunny

    • 13
    • 25

    Sunny

    • 14
    • 28

    Sunny

    • 16
    • 22

    Shower or two

    • 17
    • 21

    Shower or two

    • 16
    • 21

    Shower or two

Today 18 Sep Northern Rivers

Mostly sunny. The chance of fog in the north in the early morning. Slight chance of a shower along the coastal fringe in the early morning. Near zero chance of rain elsewhere. Light winds. Overnight temperatures falling to between 8 and 12 with daytime temperatures reaching the low to mid 20s.

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Brunswick River - Mangrove Island Temperature Statistics View More

September Temperature

Cape Byron (15km)

  • Lowest 17 September, 2026

    12 °C

  • Average September

    18.2 °C

  • Highest 6 September, 2026

    26.9 °C

Climate (2021–2026)

Cape Byron (15km)

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  • Average Low 2021–2026

    17.4 °C

  • Average 2021–2026

    20.2 °C

  • Average High 2021–2026

    23.8 °C
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