Stack Island Weather Forecast

    • 9
    • 16

    Windy. Partly cloudy

    • 10
    • 17

    Cloud clearing

    • 9
    • 21

    Sunny

    • 15
    • 25

    Sunny

    • 14
    • 26

    Sunny

    • 18
    • 22

    Shower or two

    • 14
    • 17

    Shower or two

Today 16 Sep Illawarra

Partly cloudy. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Winds south to southwesterly 25 to 40 km/h. Overnight temperatures falling to between 2 and 9 with daytime temperatures reaching between 12 and 17.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
South to southwesterly 25 to 30 knots, reaching up to 35 knots offshore south of Point Perpendicular during the morning.
Seas
2.5 to 3 metres.
1st Swell
Southerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore north of Point Perpendicular during the morning.
Weather
Cloudy. 60% chance of showers, with possible small hail offshore south of Port Kembla in the morning.
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 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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