Jetty Rock Weather Forecast

    • 14
    • 23

    Sunny

    • 12
    • 34

    Sunny

    • 19
    • 40

    Partly cloudy

    • 16
    • 23

    Cloudy

    • 15
    • 24

    Windy

    • 15
    • 29

    Partly cloudy

    • 16
    • 23

    Shower

Today 25 Jan Lower South East

Mostly sunny. Winds south to southeasterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures 25 to 35.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2 metres.
Weather
Clear.
Weather Situation
A high pressure system over waters to the south, extends a ridge over southern SA. On Monday the high moves into the Tasman Sea directing a northerly airstream over SA, ahead of another trough expected to move into the west and across the south on Tuesday. The trough moves into the eastern states on Wednesday as another high pressure system moves into waters south of the Bight to reach the Tasman Sea on Thursday whilst still maintaining a ridge over southern SA.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jetty Rock Temperature Statistics View More

January Temperature

Mount Gambier Airport (35km)

  • Lowest 1 January, 2026

    6.9 °C

  • Average January

    18.7 °C

  • Highest 7 January, 2026

    41.6 °C

Climate (2021–Present)

Mount Gambier Airport (35km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.6 °C

  • Average High 2021–2026

    20 °C
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