Observation Island Weather Forecast

    • 20
    • 23

    Partly cloudy

    • 21
    • 23

    Partly cloudy

    • 21
    • 23

    Sunny

    • 20
    • 24

    Sunny

    • 20
    • 24

    Sunny

    • 19
    • 24

    Partly cloudy

    • 20
    • 24

    Sunny

Today 2 Aug Kakadu National Park

Clear. Winds southeasterly 15 to 20 km/h.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 10 to 15 knots, reaching up to 20 knots northeast of Groote Eylandt in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres northeast of Groote Eylandt.
1st Swell
Easterly below 1 metre, increasing to around 1 metre north of Numbulwar.
Weather
Partly cloudy.
Weather Situation
A high will move across the Great Australian Bight from Sunday night through to Tuesday, maintaining east to southeasterly winds over coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

August Temperature

Centre Island (17km)

  • Lowest 1 August, 2026

    19.6 °C

  • Average August

    21.6 °C

  • Highest

    –

Climate (2021–2026)

Centre Island (17km)

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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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