Observation Island Weather Forecast

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Today 18 Jan Kakadu National Park

Partly cloudy. High chance of showers, becoming less likely in the evening. A thunderstorm likely in the afternoon and evening. Winds northerly 15 to 20 km/h becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
North to northwesterly 15 to 25 knots.
Seas
Around 1 metre, increasing to 1 to 2 metres offshore north of Numbulwar.
1st Swell
North to northeasterly 1 to 1.5 metres, increasing to 1 to 2 metres during the evening.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

January Temperature

Centre Island (17km)

  • Lowest 9 January, 2026

    25.2 °C

  • Average January

    30 °C

  • Highest 12 January, 2026

    37.6 °C

Climate (2021–Present)

Centre Island (17km)

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  • Average Low 2021–2026

    24.5 °C

  • Average 2021–2026

    27.4 °C

  • Average High 2021–2026

    31.6 °C
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