Observation Island Weather Forecast

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Today 29 Jan Kakadu National Park

Cloudy. Very high chance of showers, becoming less likely this evening. A thunderstorm likely, possibly severe with heavy rain which may lead to flash flooding southeast of Kakadu Highway. Winds west to northwesterly 15 to 20 km/h becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Northwesterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning and again in the late evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
North to northwesterly around 1 metre.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm.
Weather Situation
A broad area of low pressure persists over about the base of the Top End with west to northwesterly flow over most NT waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

January Temperature

Centre Island (17km)

  • Lowest 25 January, 2026

    24.2 °C

  • Average January

    30.1 °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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