Observation Island Weather Forecast

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    Partly cloudy

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    • 31

    Partly cloudy

    • 29
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    Sunny

    • 29
    • 31

    Partly cloudy

    • 30
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    Partly cloudy

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    Partly cloudy

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    Shower

Today 10 Dec Kakadu National Park

Partly cloudy. Medium chance of showers, most likely in the morning and afternoon. A thunderstorm likely. Light winds becoming east to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Northeasterly 10 to 15 knots tending easterly in the morning then becoming variable about 10 knots in the evening.
Seas
Below 1 metre.
1st Swell
Below 0.5 metres.
Weather
Mostly sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

December Temperature

Centre Island (17km)

  • Lowest 6 December, 2025

    26.9 °C

  • Average December

    30.8 °C

  • Highest 3 December, 2025

    36.8 °C

Climate (2020–Present)

Centre Island (17km)

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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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