Jetty Rock Weather Forecast

    • 10
    • 31

    Partly cloudy

    • 12
    • 33

    Partly cloudy

    • 15
    • 26

    Cloudy

    • 13
    • 20

    Cloudy

    • 10
    • 19

    Shower

    • 11
    • 19

    Shower

    • 11
    • 19

    Shower

Today 17 Dec Lower South East

Clear. Winds west to northwesterly 15 to 20 km/h turning southwesterly 15 to 25 km/h in the early afternoon then becoming light in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Variable about 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres south of Port MacDonnell.
Weather
Clear.
Weather Situation
A ridge of high pressure extends across most of SA this evening, as a trough of low pressure develops over the west on Thursday. This broad area of low pressure is expected to slowly move across the state from the west during Friday and Saturday, before another ridge of high pressure develops through the west and south on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jetty Rock Temperature Statistics View More

December Temperature

Mount Gambier Airport (35km)

  • Lowest 7 December, 2025

    4.7 °C

  • Average December

    14.8 °C

  • Highest 12 December, 2025

    32.6 °C

Climate (2020–Present)

Mount Gambier Airport (35km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.9 °C
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