Cape Saint George Weather Forecast

    • 17
    • 23

    Possible storm

    • 16
    • 26

    Shower or two

    • 17
    • 32

    Possible shower

    • 16
    • 20

    Cloudy

    • 15
    • 21

    Cloudy

    • 15
    • 24

    Partly cloudy

    • 15
    • 28

    Sunny

Today 12 Dec Illawarra

Partly cloudy. Slight chance of a shower, becoming less likely later this evening. The chance of a thunderstorm early this evening, possibly severe with heavy rain which may lead to flash flooding. Winds east to northeasterly 15 to 25 km/h becoming light in the late evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots offshore south of Port Kembla during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore south of Point Perpendicular.
1st Swell
Easterly below 1 metre, increasing to around 1 metre north of Point Perpendicular.
Weather
Partly cloudy. 50% chance of showers. A thunderstorm likely.
Weather Situation
Winds will tend east to northeasterly later today as a high pressure system gradually drifts into the Tasman Sea, with winds turning northerly over the weekend. A fresh to strong southerly change is expected during Sunday and Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Saint George Temperature Statistics View More

December Temperature

Point Perpendicular (9km)

  • Lowest 2 December, 2025

    10.3 °C

  • Average December

    20.1 °C

  • Highest 5 December, 2025

    33 °C

Climate (2020–Present)

Point Perpendicular (9km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    20.7 °C
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