Gerringong Weather Forecast

    • 20
    • 31

    Partly cloudy

    • 20
    • 29

    Shower or two

    • 20
    • 30

    Shower or two. Possible storm

    • 21
    • 27

    Shower or two

    • 18
    • 27

    Shower or two

    • 17
    • 28

    Shower or two

    • 17
    • 22

    Shower or two

Today 19 Dec Illawarra

Partly cloudy. Medium chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the afternoon and early evening. Winds west to southwesterly 15 to 25 km/h tending southeast to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the late evening. Daytime maximum temperatures 34 to 39.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southeast to southwesterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming south to southwesterly 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Partly cloudy. The chance of a thunderstorm inshore in the afternoon and early evening.
Weather Situation
A high in the Tasman Sea is directing northerly winds over Coastal Waters. A weak trough will bring a brief southerly change to much of the coast today, before winds turn northerly again over the weekend. Following this, a cold front will bring a fresh to strong southerly change later on Sunday or Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gerringong Temperature Statistics View More

December Temperature

Kiama (Bombo Headland) (10km)

  • Lowest 2 December, 2025

    11.9 °C

  • Average December

    20.2 °C

  • Highest 5 December, 2025

    32.5 °C

Climate (2020–Present)

Kiama (Bombo Headland) (10km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    17.8 °C

  • Average High 2020–2025

    21.4 °C
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