Observation Island Weather Forecast

    • 23
    • 27

    Clear

    • 26
    • 27

    Shower

    • 24
    • 26

    Shower

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Partly cloudy

Today 17 Sep Kakadu National Park

Mostly clear. The chance of smoke haze north of Arnhem Highway. Winds east to southeasterly 20 to 30 km/h.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Below 0.5 metres.
Weather
Clear.
Weather Situation
A strong high pressure system over the southeast of the country is extending a ridge over the coastal waters. Winds will strengthen over eastern and northern coastal waters from Friday as the high moves east. The ridge will weaken over the course of the weekend.
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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

    25.7 °C

  • Highest 8 September, 2026

    33.8 °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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