Observation Island Weather Forecast

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

Today 12 May Kakadu National Park

Partly cloudy. Slight chance of a shower north of Arnhem Highway, near zero chance elsewhere. Winds easterly 15 to 25 km/h turning southeasterly 15 to 20 km/h during the afternoon and evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots northeast of Groote Eylandt in the afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
East to southeasterly around 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm northeast of Groote Eylandt.
Weather Situation
A ridge of high pressure extends across the Northern Territory, directing east to southeasterly winds over the coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

May Temperature

Centre Island (17km)

  • Lowest 9 May, 2026

    22.6 °C

  • Average May

    26.8 °C

  • Highest 4 May, 2026

    32.7 °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

    31.5 °C
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