Rocky Island Weather Forecast

    • 19
    • 28

    Fog

    • 19
    • 29

    Sunny

    • 19
    • 29

    Sunny

    • 19
    • 29

    Sunny

    • 19
    • 30

    Partly cloudy

    • 19
    • 30

    Partly cloudy

    • 20
    • 30

    Partly cloudy

Today 17 Aug Kakadu National Park

Sunny. Light winds becoming easterly 15 to 25 km/h in the morning then becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
East to southeasterly about 10 knots increasing to 10 to 15 knots before dawn. Winds reaching up to 20 knots north of Numbulwar during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres northeast of Groote Eylandt during the morning.
1st Swell
Easterly around 1 metre.
Weather
Mostly sunny. The chance of morning fog south of Groote Eylandt with reduced visibility.
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Rocky Island Temperature Statistics View More

August Temperature

Centre Island (9km)

  • Lowest 2 August, 2026

    18.8 °C

  • Average August

    23.7 °C

  • Highest 15 August, 2026

    29.8 °C

Climate (2021–2026)

Centre Island (9km)

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  • Average Low 2021–2026

    24.5 °C

  • Average 2021–2026

    27.4 °C

  • Average High 2021–2026

    31.5 °C
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