Cabbage Tree Island Weather Forecast

    • 14
    • 24

    Morning fog then mostly sunny

    • 14
    • 28

    Mostly sunny

    • 15
    • 31

    Shower or two

    • 13
    • 19

    Showers

    • 11
    • 19

    Shower or two

    • 11
    • 21

    Partly cloudy

    • 10
    • 24

    Sunny

Today 24 Sep Illawarra

Partly cloudy. Patchy morning fog. Slight chance of a shower in the north, near zero chance elsewhere. The chance of a thunderstorm inland in the afternoon and evening. Winds north to northeasterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures in the low to mid 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northeasterly 15 to 25 knots, reaching up to 30 knots offshore north of Port Kembla during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs an east to northeasterly flow through the coastal waters. Winds will freshen and tend more north to northeasterly on Thursday and Friday as the high slips further to the east. A cold front and trough will then enter the Tasman Sea, bringing a southerly change which will gradually track northward through the weekend.
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

    16.6 °C

  • Highest 19 September, 2026

    29.1 °C

Climate (2021–2026)

Point Perpendicular (9km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.9 °C
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