Observation Island Weather Forecast

    • 24
    • 25

    Fog

    • 24
    • 25

    Sunny

    • 24
    • 26

    Partly cloudy

    • 23
    • 26

    Cloudy

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Partly cloudy

    • 24
    • 26

    Shower

Today 5 Sep Kakadu National Park

Mostly sunny. Slight chance of a shower northwest of Kakadu Highway early this morning. Near zero chance of rain elsewhere. Light winds becoming south to southeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Variable about 10 knots becoming easterly 10 to 15 knots in the morning then turning north to northeasterly during the day.
Seas
Below 1 metre.
1st Swell
Northeasterly below 1 metre.
Weather
Sunny. The chance of morning fog inshore with reduced visibility.
Weather Situation
A ridge extends over northern NT from the east, and will weaken slightly on the weekend. A weak trough will form through western coastal waters in the new week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observation Island Temperature Statistics View More

September Temperature

Centre Island (17km)

  • Lowest 2 September, 2026

    21.6 °C

  • Average September

    24.7 °C

  • Highest 1 September, 2026

    29.8 °C

Climate (2021–2026)

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