Stack Island Weather Forecast

    • 17
    • 25

    Mostly sunny

    • 17
    • 23

    Sunny

    • 14
    • 21

    Sunny

    • 14
    • 24

    Possible shower

    • 14
    • 20

    Sunny

    • 12
    • 21

    Partly cloudy

    • 14
    • 21

    Possible shower

Today 2 Sep Illawarra

Mostly sunny. Slight chance of a shower near the coast in the early morning. Near zero chance of rain elsewhere. Winds west to northwesterly 25 to 40 km/h. Daytime maximum temperatures 21 to 26.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northwesterly 10 to 15 knots, reaching up to 20 knots offshore north of Port Kembla during the morning.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
1st Swell
Southerly below 1 metre.
Weather
Cloud clearing.
Weather Situation
North to northwesterly winds will fresh from today freshen ahead of a trough and associated cold front crossing the coastal waters during Thursday, driving west to southwesterly winds in its wake. North to northwesterly winds are forecast to redevelop ahead of a series of fronts crossing the waters during the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

September Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 1 September, 2026

    11.1 °C

  • Average September

    15.6 °C

  • Highest

    –

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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