Stack Island Weather Forecast

    • 14
    • 21

    Sunny

    • 14
    • 27

    Windy. Partly cloudy

    • 14
    • 21

    Sunny

    • 12
    • 20

    Shower or two

    • 13
    • 18

    Possible shower

    • 12
    • 17

    Shower or two

    • 9
    • 18

    Mostly sunny

Today 4 Sep Illawarra

Sunny. Winds west to northwesterly 20 to 30 km/h. Overnight temperatures falling to between 7 and 12 with daytime temperatures reaching between 18 and 23.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
West to southwesterly 15 to 20 knots shifting east to northeasterly 10 to 15 knots during the morning then tending northwest to northeasterly in the early afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southerly 1 to 1.5 metres, increasing to 1 to 2 metres during the morning, then decreasing to 1 to 1.5 metres during the afternoon.
Weather
Cloud clearing.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

September Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 1 September, 2026

    11.1 °C

  • Average September

    19.4 °C

  • Highest 2 September, 2026

    27.3 °C

Climate (2021–2026)

Kiama (Bombo Headland) (3km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    17.9 °C

  • Average High 2021–2026

    21.5 °C
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