South West Island Weather Forecast

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Storm

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    Storm

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    Storm

Today 12 Dec Kakadu National Park

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm later this evening. Light winds becoming northerly 15 to 20 km/h in the late afternoon then becoming light in the late evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
East to northeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Below 0.5 metres.
Weather
Mostly clear.
Weather Situation
A ridge through the Gulf of Carpentaria brings east to northeasterly winds to coastal waters, weakening over the weekend and into next week as a trough moves northwards towards the base of the Top End.
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  • Temperature Forecast Bureau of Meteorology

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South West Island Temperature Statistics View More

December Temperature

Centre Island (16km)

  • Lowest 6 December, 2025

    26.9 °C

  • Average December

    30.7 °C

  • Highest 3 December, 2025

    36.8 °C

Climate (2020–Present)

Centre Island (16km)

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  • Average Low 2020–2025

    24.5 °C

  • Average 2020–2025

    27.4 °C

  • Average High 2020–2025

    31.6 °C
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