Observation Island Weather Forecast

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    Sunny

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    Sunny

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    Sunny

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Sunny

Today 27 Aug Kakadu National Park

Sunny. Winds east to southeasterly 25 to 35 km/h becoming light in the evening then becoming east to southeasterly 15 to 20 km/h in the late evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots east of Groote Eylandt during the morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
East to southeasterly below 1 metre.
Weather
Sunny.
Weather Situation
A high pressure system moving across southern Australia directs a southeasterly surge over northern and eastern coastal waters. The ridge will persist over coastal waters through the remainder of the week with winds easing slightly on Friday and Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

August Temperature

Centre Island (17km)

  • Lowest 2 August, 2026

    18.8 °C

  • Average August

    24.1 °C

  • Highest 23 August, 2026

    30.8 °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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