South West Island Weather Forecast

    • 15
    • 28

    Sunny

    • 17
    • 28

    Sunny

    • 16
    • 29

    Sunny

    • 14
    • 29

    Partly cloudy

    • 13
    • 29

    Partly cloudy

    • 13
    • 27

    Partly cloudy

    • 11
    • 28

    Partly cloudy

Today 11 Jul Kakadu National Park

Sunny. Winds southeasterly 15 to 20 km/h increasing to 25 to 35 km/h in the morning then becoming east to southeasterly and light in the evening.

Roper Groote Coast

Cape Arnhem to QLD-NT Border
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots offshore south of Numbulwar during the morning.
Seas
1.5 to 2.5 metres.
1st Swell
Northeast to southeasterly below 1 metre inshore, increasing to around 1 metre offshore north of Numbulwar.
Weather
Mostly sunny.
Weather Situation
A ridge is strengthening across the NT and will send a surge of southeasterly winds into coastal waters on Friday. The ridge will gradually weaken over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South West Island Temperature Statistics View More

July Temperature

Centre Island (16km)

  • Lowest 4 July, 2025

    16.7 °C

  • Average July

    21.3 °C

  • Highest 9 July, 2025

    29.9 °C

Climate (2020–Present)

Centre Island (16km)

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

  • Average Low 2020–2025

    24.5 °C

  • Average 2020–2025

    27.4 °C

  • Average High 2020–2025

    31.6 °C
Get WillyWeather+ to remove ads