Jetty Rock Weather Forecast

    • 15
    • 24

    Cloudy

    • 16
    • 27

    Cloudy

    • 16
    • 23

    Shower

    • 14
    • 20

    Cloudy

    • 11
    • 22

    Windy

    • 10
    • 27

    Sunny

    • 11
    • 24

    Partly cloudy

Today 29 Jan Lower South East

Partly cloudy. Slight chance of a shower in the south, becoming less likely later this evening. Near zero chance of rain elsewhere. Winds southeasterly 25 to 35 km/h decreasing to 15 to 20 km/h in the late evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots, reaching up to 30 knots north of Port MacDonnell in the late afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres north of Port MacDonnell.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2 metres south of Port MacDonnell.
Weather
Cloudy.
Weather Situation
A low pressure trough lingering over northern parts of SA gradually moves east during Friday, as a high pressure system moves into the Tasman Sea. A stronger high pressure system moves into the Bight from the west on Saturday, pushing the trough out to the far northeast, with a south to southeasterly flow developing across the entire state by Sunday. The high continues to move eastwards, maintaining a ridge over southern parts, as the trough begins to develop in the north again.
Graph Plots Open in Graphs

  • 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

    19.2 °C

  • Highest 27 January, 2026

    43.7 °C

Climate (2021–Present)

Mount Gambier Airport (35km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.6 °C

  • Average High 2021–2026

    20 °C
Get WillyWeather+ to remove ads