Stack Island Weather Forecast

    • 14
    • 23

    Mostly sunny

    • 16
    • 26

    Showers. Possible storm

    • 18
    • 23

    Shower or two

    • 16
    • 23

    Shower or two

    • 17
    • 23

    Showers. Possible storm

    • 17
    • 25

    Shower or two

    • 15
    • 21

    Possible shower

Today 30 Oct Illawarra

Mostly sunny. The chance of fog about higher ground in the early morning. Light winds becoming north to northeasterly 20 to 30 km/h in the middle of the day. Overnight temperatures falling to between 9 and 13 with daytime temperatures reaching the low to high 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Variable below 10 knots becoming northerly 10 to 15 knots in the morning then tending northeasterly 15 to 25 knots in the middle of the day. Winds reaching up to 30 knots offshore south of Point Perpendicular in the evening.
Seas
Below 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southerly 2 to 3 metres, decreasing to 2 metres by early evening.
Weather
Partly cloudy.
Weather Situation
A high pressure system crossing New South Wales extends a ridge across the coastal waters, bringing generally light to moderate southwest to southeasterly winds. Winds shifting north to northeasterly and strengthening from today as a trough crosses the state from the west, with a southerly change expected to move along the southern half of the coast during Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

October Temperature

Kiama (Bombo Headland) (3 km)

  • Lowest 9 October, 2026

    11.4 °C

  • Average October

    18 °C

  • Highest 12 October, 2026

    34.3 °C

Climate (2021–2026)

Kiama (Bombo Headland) (3 km)

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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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