Riddoch Bay Weather Forecast

    • 9
    • 23

    Sunny

    • 11
    • 30

    Sunny

    • 15
    • 35

    Partly cloudy

    • 15
    • 20

    Cloudy

    • 12
    • 18

    Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 13
    • 23

    Partly cloudy

Today 27 Dec Mount Gambier

Sunny. Light winds becoming southeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
East to southeasterly 10 to 15 knots, reaching up to 20 knots south of Beachport during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of Beachport.
1st Swell
Southwesterly 1.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system maintains a broad ridge over most of South Australia. A low pressure trough enters western parts of the state later today and continues moving east on Sunday, reaching central parts on Monday. The deepening trough moves into eastern parts of SA on Tuesday, while a new ridge builds across the west.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

December Temperature

Mount Gambier Airport (33km)

  • Lowest 7 December, 2025

    4.7 °C

  • Average December

    15.6 °C

  • Highest 18 December, 2025

    38.9 °C

Climate (2020–Present)

Mount Gambier Airport (33km)

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

  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.9 °C
Get WillyWeather+ to remove ads