Jetty Rock Weather Forecast

    • 14
    • 22

    Shower

    • 11
    • 16

    Windy

    • 9
    • 15

    Shower

    • 6
    • 21

    Shower

    • 9
    • 16

    Shower

    • 7
    • 14

    Shower

    • 8
    • 14

    Shower

Today 15 Sep Lower South East

Partly cloudy. High chance of showers in the afternoon and evening. The chance of a thunderstorm in the late afternoon and evening. Winds northerly 25 to 40 km/h turning northwesterly in the middle of the day then decreasing to 20 to 30 km/h in the late afternoon. Daytime maximum temperatures in the low to mid 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northerly 25 to 30 knots turning northwesterly 20 to 30 knots in the middle of the day.
Seas
2 to 3 metres, increasing to 2.5 to 4 metres south of Port MacDonnell.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Weather Situation
A high pressure system over the Tasman Sea maintains a north to northwesterly airstream across coastal waters, ahead of cold front approaching from the west. The cold front will move across coastal waters today, followed by another high pressure system on Tuesday. The high will continue to move eastwards into NSW on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jetty Rock Temperature Statistics View More

September Temperature

Mount Gambier Airport (35km)

  • Lowest 5 September, 2025

    -0.2 °C

  • Average September

    10.9 °C

  • Highest 7 September, 2025

    21.5 °C

Climate (2020–Present)

Mount Gambier Airport (35km)

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

  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.7 °C

  • Average High 2020–2025

    20 °C
Get WillyWeather+ to remove ads