Harney Island Weather Forecast

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Today 18 Dec Kakadu National Park

Partly cloudy. High chance of showers, most likely in the late afternoon and evening. A thunderstorm likely in the afternoon and evening. Light winds.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Easterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Northeast to southeasterly below 1 metre.
Weather
Partly cloudy. 80% chance of showers. A thunderstorm likely.
Weather Situation
A weak pressure gradient extends over coastal waters. A tropical low is forming to the north of the coastal waters along a trough in the Arafura Sea and is forecast to move towards the northeast Top End or western Gulf of Carpentaria on Friday or Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Harney Island Temperature Statistics View More

December Temperature

Centre Island (10km)

  • Lowest 17 December, 2025

    26.6 °C

  • Average December

    30.7 °C

  • Highest 3 December, 2025

    36.8 °C

Climate (2020–Present)

Centre Island (10km)

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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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