Stack Island Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 11
    • 19

    Sunny

    • 11
    • 20

    Mostly sunny

    • 13
    • 23

    Sunny

    • 17
    • 25

    Mostly sunny

    • 15
    • 22

    Mostly sunny

    • 14
    • 22

    Sunny

Today 29 Aug Illawarra

Partly cloudy. Patchy fog inland in the early morning. The chance of morning frost about higher ground. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Light winds. Overnight temperatures falling to between 3 and 9 with daytime temperatures reaching between 17 and 20.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
South to southwesterly 10 to 15 knots, reaching up to 20 knots offshore during the morning. Winds tending south to southeasterly below 10 knots during the day.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
1st Swell
Southerly 1.5 metres, increasing to 1.5 to 2 metres south of Port Kembla.
Weather
Cloud clearing.
Weather Situation
A high pressure system is slowly moving across the state this weekend, entering the Tasman Sea by Monday. A cold front is forecast to move across the south of the state on Tuesday, bringing warm and gusty westerly winds.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

August Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 8 August, 2026

    8.9 °C

  • Average August

    14.6 °C

  • Highest 22 August, 2026

    22 °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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