Princess Island Weather Forecast

    • 18
    • 27

    Showers. Possible storm

    • 20
    • 25

    Becoming cloudy

    • 16
    • 24

    Partly cloudy

    • 15
    • 28

    Sunny day. Late shower or two

    • 16
    • 20

    Shower or two

    • 13
    • 21

    Partly cloudy

    • 14
    • 22

    Partly cloudy

Today 21 Dec South Coast

Cloudy. The chance of fog in the south in the early morning. Very high chance of rain. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Light winds becoming north to northeasterly 15 to 25 km/h in the early afternoon then tending north to northwesterly in the evening. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching 24 to 29.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northwest to southwesterly 10 to 15 knots tending northeast to southeasterly in the morning then tending north to northeasterly in the evening. Winds reaching up to 20 knots offshore north of Port Kembla during the afternoon and evening.
Seas
Around 1 metre, decreasing below 0.5 metres during the morning, then increasing to around 1 metre around midday.
1st Swell
Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Kembla during the morning.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and early evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Princess Island Temperature Statistics View More

December Temperature

Ulladulla (10km)

  • Lowest 2 December, 2025

    9.7 °C

  • Average December

    19.7 °C

  • Highest 6 December, 2025

    37.1 °C

Climate (2020–Present)

Ulladulla (10km)

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  • Average Low 2020–2025

    13.7 °C

  • Average 2020–2025

    17 °C

  • Average High 2020–2025

    20.8 °C
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