Stack Island Weather Forecast

    • 13
    • 18

    Sunny

    • 8
    • 16

    Sunny

    • 9
    • 19

    Sunny

    • 11
    • 18

    Mostly sunny

    • 10
    • 19

    Sunny

    • 11
    • 19

    Mostly sunny

    • 10
    • 15

    Shower or two

Today 23 Jul Illawarra

Mostly sunny. Slight chance of a shower in the south, near zero chance elsewhere. Winds westerly 20 to 30 km/h. Overnight temperatures falling to between 5 and 11 with daytime temperatures reaching between 12 and 18.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Westerly 15 to 25 knots, reaching up to 30 knots inshore during the morning, tending southwesterly in the evening. Winds reaching up to 30 knots offshore north of Port Kembla in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres north of Point Perpendicular around midday.
1st Swell
Southerly around 1 metre, increasing to 1 to 2 metres south of Port Kembla by early evening.
Weather
Mostly sunny. 70% chance of showers.
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 11 July, 2026

    8.6 °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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