Princess Island Weather Forecast

    • 8
    • 21

    Mostly clear

    • 15
    • 27

    Sunny

    • 14
    • 29

    Sunny

    • 19
    • 22

    Shower or two

    • 13
    • 17

    Cloudy

    • 11
    • 21

    Partly cloudy

    • 14
    • 23

    Mostly sunny

Today 18 Sep South Coast

Mostly clear. Winds northeast to southeasterly 15 to 20 km/h becoming light in the late afternoon then becoming west to northwesterly 15 to 20 km/h in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 10 to 15 knots turning westerly 15 to 20 knots in the evening. Winds reaching up to 25 knots offshore south of Port Kembla in the late evening.
Seas
Around 1 metre.
1st Swell
Southerly 1.5 metres, increasing to 1.5 to 2 metres south of Port Kembla.
Weather
Mostly clear.
Weather Situation
A high pressure system over the state is extending a strong ridge over the New South Wales Coastal Waters, bringing moderate to fresh south to southwesterly winds. The winds weaken as the high moves over the Tasman Sea on Sunday. Behind this, a cold front will brush the southern coastal waters on Monday, leaving a southerly change in its wake. The change is expected to reach the QLD border on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

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Princess Island Temperature Statistics View More

September Temperature

Ulladulla (10km)

  • Lowest 16 September, 2026

    6.9 °C

  • Average September

    16 °C

  • Highest 2 September, 2026

    27.3 °C

Climate (2021–2026)

Ulladulla (10km)

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  • Average Low 2021–2026

    13.9 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    20.9 °C
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