Riddoch Bay Weather Forecast

    • 10
    • 31

    Mostly sunny

    • 12
    • 34

    Mostly sunny

    • 16
    • 26

    Partly cloudy

    • 12
    • 19

    Partly cloudy

    • 10
    • 19

    Showers

    • 11
    • 19

    Cloudy

    • 11
    • 18

    Cloudy

Today 17 Dec Mount Gambier

Mostly sunny. Light winds becoming west to southwesterly 15 to 20 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 1 metre.
1st Swell
South to southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then tending southwesterly 1 to 1.5 metres around midday.
Weather
Sunny.
Weather Situation
A high pressure system drifts into the Tasman Sea today. A trough of low pressure will briefly enter the far northeast of SA with another trough slowly moving across the south and west on Thursday. In the wake of the trough a south to southwesterly flow will establish across the coasts on Friday, continuing into Saturday.
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  • 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

    14.8 °C

  • Highest 12 December, 2025

    32.6 °C

Climate (2020–Present)

Mount Gambier Airport (33km)

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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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