Stack Island Weather Forecast

    • 10
    • 21

    Mostly sunny

    • 16
    • 27

    Shower or two

    • 16
    • 23

    Partly cloudy

    • 17
    • 29

    Sunny morning. Shower or two

    • 16
    • 20

    Showers

    • 13
    • 18

    Shower or two

    • 12
    • 18

    Shower or two

Today 9 Oct Illawarra

The chance of fog in the early morning. Mostly sunny day. Light winds becoming northeasterly 15 to 25 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 4 and 9 with daytime temperatures reaching the low to high 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Variable about 10 knots becoming northeasterly 15 to 20 knots in the middle of the day then tending northerly in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southeasterly 2 to 3 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system passing to the south of the state extends a weak ridge over the coastal waters today. Winds will turn northerly ahead of the next cold front which will drive a southerly change along the coastal waters during Saturday, weakening and reaching the north coast on 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 7 October, 2026

    13 °C

  • Average October

    17.4 °C

  • Highest 6 October, 2026

    26.3 °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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