Stack Island Weather Forecast

    • 17
    • 22

    Shower or two

    • 17
    • 24

    Mostly sunny

    • 18
    • 27

    Showers. Possible storm

    • 15
    • 21

    Showers easing

    • 12
    • 21

    Shower or two

    • 12
    • 22

    Mostly sunny

    • 14
    • 21

    Mostly sunny

Today 23 Oct Illawarra

Partly cloudy. Medium chance of showers, most likely during the morning and afternoon. The chance of a thunderstorm inland this afternoon. Winds northeasterly 20 to 30 km/h. Daytime maximum temperatures between 19 and 24.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northeasterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Point Perpendicular by early evening.
Weather
Partly cloudy.
Weather Situation
A high in the Tasman Sea maintains a ridge over the coastal waters. The high will move slowly east on the weekend. A strong cold front and trough will cross the southern coastal waters late on Sunday and move north.
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

    17.9 °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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