Cabbage Tree Island Weather Forecast

    • 11
    • 19

    Shower or two

    • 13
    • 21

    Showers

    • 13
    • 24

    Cloud clearing

    • 13
    • 29

    Mostly sunny

    • 15
    • 29

    Possible shower developing

    • 14
    • 21

    Shower or two

    • 11
    • 23

    Partly cloudy

Today 22 Sep Illawarra

Cloudy. High chance of showers in the north, medium chance elsewhere. Winds south to southeasterly 15 to 25 km/h tending east to southeasterly 15 to 20 km/h in the morning then becoming light in the evening. Overnight temperatures falling to between 6 and 12 with daytime temperatures reaching between 13 and 18.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
South to southeasterly 10 to 15 knots turning easterly in the early afternoon. Winds reaching up to 20 knots offshore north of Port Kembla during the morning and again in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore north of Port Kembla.
1st Swell
Southerly 1.5 to 2 metres.
Weather
Cloudy. 80% chance of showers offshore north of Port Kembla, 50% chance elsewhere.
Weather Situation
A fresh and gusty southerly change over the coastal waters will reach QLD this morning. A high pressure system is forecast to slip south and enter the Tasman Sea by mid-week, turning the winds east to northeasterly from Wednesday and freshen along the southern and central coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cabbage Tree Island Temperature Statistics View More

September Temperature

Point Perpendicular (9km)

  • Lowest 18 September, 2026

    9.6 °C

  • Average September

    16.9 °C

  • Highest 19 September, 2026

    29.1 °C

Climate (2021–2026)

Point Perpendicular (9km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.9 °C
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