Observation Island Weather Forecast

    • 22
    • 26

    Sunny

    • 22
    • 26

    Partly cloudy

    • 23
    • 26

    Sunny

    • 23
    • 25

    Partly cloudy

    • 23
    • 25

    Shower

    • 21
    • 24

    Partly cloudy

    • 20
    • 25

    Sunny

Today 15 Jun Kakadu National Park

Sunny. Light winds becoming east to southeasterly 15 to 25 km/h in the early morning then becoming light in the late afternoon.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
East to southeasterly 15 to 20 knots, reaching up to 25 knots northeast of Groote Eylandt during the morning. Winds decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
1st Swell
Easterly around 1 metre.
Weather
Mostly sunny.
Weather Situation
A high pressure system moves into the Tasman Sea as a cold front moves across the Great Australian Bight. A low will develop in the Bight from Tuesday and will be slow moving being south of South Australian by mid-week, causing the ridge across the Northern Territory to weaken.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

June Temperature

Centre Island (17km)

  • Lowest 7 June, 2026

    17.3 °C

  • Average June

    23.5 °C

  • Highest 4 June, 2026

    29.7 °C

Climate (2021–Present)

Centre Island (17km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    24.5 °C

  • Average 2021–2026

    27.4 °C

  • Average High 2021–2026

    31.5 °C
Get WillyWeather+ to remove ads