Observation Island Weather Forecast

    • 23
    • 26

    Partly cloudy

    • 25
    • 27

    Partly cloudy

    • 24
    • 26

    Partly cloudy

    • 25
    • 26

    Shower

    • 25
    • 26

    Shower

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Sunny

Today 8 Sep Kakadu National Park

Sunny. Light winds becoming easterly 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
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
Below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
A weak ridge persists over the eastern coastal waters while a weak trough near the western Top End Coast. The ridge will extend towards the western coastal waters from mid-week and gradually strengthen into the weekend, driving a fresh easterly airflow over the eastern coastal waters.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

September Temperature

Centre Island (17km)

  • Lowest 2 September, 2026

    21.6 °C

  • Average September

    25.2 °C

  • Highest 6 September, 2026

    31.3 °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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