South West Island Weather Forecast

    • 24
    • 32

    Partly cloudy

    • 25
    • 35

    Partly cloudy

    • 25
    • 37

    Partly cloudy

    • 25
    • 36

    Shower

    • 25
    • 34

    Storm

    • 25
    • 33

    Shower

    • 25
    • 33

    Storm

Today 28 Dec Kakadu National Park

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm. Light winds.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Northwesterly 10 to 15 knots, reaching up to 20 knots northeast of Groote Eylandt in the evening. Squalls above 40 knots possible.
Seas
Below 1 metre, increasing to 1 to 1.5 metres east of Groote Eylandt.
1st Swell
North to northwesterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A tropical low lies in northwest Queensland near the Northern Territory border and southern Gulf coast, directing fresh monsoonal northwesterlies through Gulf waters. The low will slowly drift southwards over the next couple of days with its subsequent location and strength becoming uncertain late in the week. A trough through the central NT may freshen westerly winds in the western waters later this week.
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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 22 December, 2025

    23.7 °C
  • Average December

    29.5 °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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