Stack Island Weather Forecast

    • 16
    • 27

    Sunny

    • 19
    • 24

    Shower or two

    • 13
    • 17

    Shower or two

    • 14
    • 20

    Shower or two

    • 15
    • 22

    Partly cloudy

    • 15
    • 24

    Mostly sunny

    • 17
    • 25

    Partly cloudy

Today 20 Sep Illawarra

Sunny. Winds west to southwesterly 15 to 25 km/h tending west to northwesterly 20 to 30 km/h before dawn. Overnight temperatures falling to between 11 and 15 with daytime temperatures reaching 25 to 30.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
West to southwesterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming north to northwesterly 10 to 15 knots in the morning. Winds reaching up to 20 knots offshore south of Point Perpendicular during the afternoon and evening.
Seas
Around 1 metre.
1st Swell
Southerly 1 to 1.5 metres.
Weather
Sunny.
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 18 September, 2026

    9.3 °C

  • Average September

    16.6 °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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