Horn Islet Weather Forecast

    • 25
    • 36

    Partly cloudy

    • 25
    • 37

    Partly cloudy

    • 26
    • 37

    Shower

    • 26
    • 35

    Storm

    • 25
    • 34

    Shower

    • 25
    • 34

    Storm

    • 26
    • 34

    Shower

Today 29 Dec Kakadu National Park

Partly cloudy. Medium chance of showers in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Light winds becoming westerly 15 to 20 km/h in the morning then becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
West to northwesterly 10 to 15 knots, reaching up to 20 knots offshore during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres northeast of Groote Eylandt.
1st Swell
North to northwesterly below 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm.
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  • Temperature Forecast Bureau of Meteorology

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Horn Islet Temperature Statistics View More

December Temperature

Centre Island (1km)

  • Lowest 22 December, 2025

    23.7 °C

  • Average December

    29.5 °C

  • Highest 3 December, 2025

    36.8 °C

Climate (2020–Present)

Centre Island (1km)

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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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