South West Island Weather Forecast

    • 16
    • 29

    Sunny

    • 13
    • 29

    Sunny

    • 9
    • 30

    Sunny

    • 10
    • 30

    Sunny

    • 13
    • 27

    Sunny

    • 14
    • 27

    Partly cloudy

    • 13
    • 27

    Sunny

Today 7 Jul Kakadu National Park

Sunny. Winds southeasterly 20 to 30 km/h becoming light in the late afternoon.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Numbulwar during the morning.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres east of Groote Eylandt.
1st Swell
East to southeasterly below 1 metre.
Weather
Mostly sunny.
Weather Situation
A ridge will peak in strength over coastal waters, then weaken from Tuesday, as a high [1022 hPa] moves across central Australia.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South West Island Temperature Statistics View More

July Temperature

Centre Island (16km)

  • Lowest 4 July, 2025

    16.7 °C

  • Average July

    20.6 °C

  • Highest 5 July, 2025

    25.8 °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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