South West Island Weather Forecast

    • 13
    • 27

    Partly cloudy

    • 12
    • 28

    Sunny

    • 9
    • 26

    Sunny

    • 8
    • 28

    Sunny

    • 11
    • 29

    Sunny

    • 16
    • 28

    Partly cloudy

    • 17
    • 29

    Partly cloudy

Today 19 Jul Kakadu National Park

Partly cloudy. Winds southeasterly 15 to 25 km/h becoming light in the late afternoon.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
South to southeasterly 15 to 20 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres northeast of Groote Eylandt.
1st Swell
East to southeasterly below 1 metre.
Weather
Sunny.
Weather Situation
The ridge across the NT will weaken on Monday as a significant trough moves across Western Australia. The trough will then move into eastern Australia on Tuesday, with another weak high briefly following it.
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  • Temperature Forecast Bureau of Meteorology

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South West Island Temperature Statistics View More

July Temperature

Centre Island (16km)

  • Lowest 4 July, 2025

    16.7 °C

  • Average July

    21.8 °C

  • Highest 9 July, 2025

    29.9 °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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