Stack Island Weather Forecast

    • 16
    • 20

    Showers

    • 16
    • 20

    Showers

    • 15
    • 20

    Shower or two

    • 14
    • 21

    Possible shower

    • 16
    • 22

    Shower or two

    • 16
    • 22

    Shower or two

    • 16
    • 22

    Shower or two

Today 13 May Illawarra

Cloudy. Very high chance of showers. Winds southeasterly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures between 15 and 20.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southeasterly 10 to 15 knots, reaching up to 20 knots offshore north of Port Kembla in the evening. Winds turning easterly in the evening.
Seas
Around 1 metre.
1st Swell
Southeasterly 1.5 to 2 metres, tending southerly 1.5 to 2 metres by early evening, then decreasing to 1.5 metres later in the evening.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A strong high pressure system entering the southwestern Tasman Sea will slowly drift east towards New Zealand over the next several days while directing an onshore easterly airstream over the coastal waters of New South Wales. Little change to this pattern is expected through the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

May Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 8 May, 2026

    10.1 °C

  • Average May

    17.6 °C

  • Highest 2 May, 2026

    23.4 °C

Climate (2021–Present)

Kiama (Bombo Headland) (3km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.8 °C

  • Average High 2021–2026

    21.5 °C
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