Stack Island Weather Forecast

    • 9
    • 16

    Windy. Partly cloudy

    • 10
    • 17

    Cloud clearing

    • 9
    • 21

    Sunny

    • 15
    • 25

    Sunny

    • 15
    • 27

    Sunny

    • 18
    • 22

    Shower or two

    • 14
    • 18

    Shower or two

Today 16 Sep Illawarra

Mostly clear. Winds southerly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southerly 25 to 30 knots.
Seas
3 metres.
1st Swell
Southerly 2.5 to 3 metres.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A strong high over the Great Australian Bight is moving east in the wake of a trough in the Tasman Sea, directing strong and blustery southerly winds over the coastal waters. The winds will ease from Thursday as the high moves across the state later in the week and into the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

September Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 9 September, 2026

    9.5 °C

  • Average September

    16.9 °C

  • Highest 5 September, 2026

    29.8 °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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