Stack Island Weather Forecast

    • 9
    • 18

    Mostly sunny

    • 10
    • 19

    Sunny

    • 11
    • 16

    Mostly sunny

    • 9
    • 15

    Sunny

    • 9
    • 16

    Partly cloudy

    • 10
    • 17

    Possible shower

    • 10
    • 19

    Mostly sunny

Today 27 Jul Illawarra

Mostly sunny. Areas of frost and patchy fog inland this morning. Light winds becoming north to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the evening. Daytime maximum temperatures between 14 and 18.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the early afternoon. Winds reaching up to 20 knots inshore in the evening.
Seas
Below 0.5 metres, increasing to around 1 metre during the afternoon.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Mostly sunny.
Weather Situation
West to southwesterly winds as a high pressure ridge moves over the region. Winds are expected to ease and turn northerly as the high moves over the Tasman Sea today, ahead of the next cold front crossing the coastal waters on Tuesday. The cold front may bring some fresh and gusty westerly winds, particularly about the southern and southeastern coasts. Following the front's passage, high pressure is forecast to rebuild over the region from Wednesday with conditions easing.
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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