Stack Island Weather Forecast

    • 9
    • 16

    Shower or two

    • 9
    • 18

    Mostly sunny

    • 11
    • 15

    Early shower or two

    • 12
    • 18

    Sunny

    • 12
    • 18

    Mostly sunny

    • 11
    • 16

    Partly cloudy

    • 11
    • 16

    Possible shower

Today 10 Jul Illawarra

Partly cloudy. Patchy morning fog inland. Medium chance of showers, most likely in the late morning and afternoon. Light winds. Daytime maximum temperatures between 12 and 16.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
Southeasterly 1.5 to 2.5 metres.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A strong high pressure system in the Tasman Sea maintains a ridge over the southern half of the coast while a weak trough develops off the northern half of the coast. Winds will gradually ease before turning northerly and freshening from Saturday as the ridge extends over the northern coastal waters. Then, a cold front and trough crosses the coastal waters later in the weekend, bringing fresh westerly winds in it's wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

July Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 5 July, 2026

    10.4 °C

  • Average July

    14.1 °C

  • Highest 2 July, 2026

    22.2 °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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