Observation Island Weather Forecast

    • 22
    • 24

    Clear

    • 20
    • 23

    Sunny

    • 19
    • 23

    Sunny

    • 18
    • 23

    Partly cloudy

    • 18
    • 24

    Sunny

    • 20
    • 24

    Partly cloudy

    • 21
    • 23

    Partly cloudy

Today 24 Jul Kakadu National Park

Mostly clear. Winds east to southeasterly 20 to 30 km/h.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots northeast of Groote Eylandt in the late afternoon.
Seas
1.5 to 2 metres.
1st Swell
East to southeasterly below 1 metre.
Weather
Clear.
Weather Situation
A ridge over Central Australia directs a southeasterly flow over the coastal waters, winds starting to ease early next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

July Temperature

Centre Island (17km)

  • Lowest 21 July, 2026

    17.9 °C

  • Average July

    23.4 °C

  • Highest 9 July, 2026

    29.5 °C

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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