Willy Islet Weather Forecast

    • 24
    • 30

    Sunny

    • 23
    • 30

    Partly cloudy

    • 22
    • 30

    Partly cloudy

    • 23
    • 30

    Partly cloudy

    • 24
    • 31

    Partly cloudy

    • 24
    • 31

    Partly cloudy

    • 24
    • 31

    Partly cloudy

Today 13 Sep Kakadu National Park

Mostly sunny. Winds southeasterly 20 to 30 km/h becoming light in the late evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots northeast of Groote Eylandt in the late morning. Winds decreasing to 10 to 15 knots in the evening.
Seas
1.5 to 2.5 metres.
1st Swell
East to southeasterly below 1 metre, increasing to around 1 metre northeast of Groote Eylandt.
Weather
Sunny.
Weather Situation
A ridge extends across the NT from a high [1029 hPa] over the Great Australian Bight, resulting in an increase in southeasterly winds over the coastal waters. Winds will start to ease from Sunday as the high moves east and the ridge weakens. From Monday, the ridge will extend over northeastern Australia.
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Willy Islet Temperature Statistics View More

September Temperature

Centre Island (9km)

  • Lowest 3 September, 2025

    19.3 °C
  • Average September

    24.8 °C
  • Highest 6 September, 2025

    31.7 °C

Climate (2020–Present)

Centre Island (9km)

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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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