Sandy Island Weather Forecast

    • 14
    • 25

    Mostly sunny

    • 11
    • 24

    Showers increasing

    • 10
    • 18

    Showers. Very windy

    • 10
    • 17

    Shower or two

    • 7
    • 19

    Partly cloudy

    • 10
    • 18

    Shower or two

    • 9
    • 18

    Possible shower

Today 17 Sep South West

Partly cloudy. Slight chance of a shower near the Southwest Capes, near zero chance elsewhere. Winds northwesterly 15 to 25 km/h becoming light in the evening.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
West to northwesterly 10 to 15 knots, reaching up to 20 knots offshore east of Cape Leeuwin in the early afternoon. Winds tending north to northwesterly in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Partly cloudy.
Weather Situation
A trough extends down the west coast, and is moving east ahead of a cold front crossing the southwest on Friday. The cold front will cross the southern waters throughout Saturday, leaving a weak high pressure ridge in its wake Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sandy Island Temperature Statistics View More

September Temperature

Windy Harbour (3km)

  • Lowest 6 September, 2026

    0.3 °C

  • Average September

    15.4 °C

  • Highest 11 September, 2026

    23.5 °C

Climate (2021–2026)

Windy Harbour (3km)

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

  • Average Low 2021–2026

    11 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    20.4 °C
Get WillyWeather+ to remove ads