Riddoch Bay Weather Forecast

    • 14
    • 19

    Mostly clear

    • 12
    • 19

    Cloudy

    • 12
    • 20

    Partly cloudy

    • 13
    • 21

    Partly cloudy

    • 13
    • 20

    Possible shower

    • 14
    • 19

    Cloudy

    • 13
    • 20

    Partly cloudy

Today 10 Jan Mount Gambier

Mostly clear. Winds southwesterly 25 to 40 km/h tending southerly 15 to 25 km/h in the evening then becoming light in the late evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 15 to 20 knots turning southerly in the evening.
Seas
1.5 to 2 metres.
1st Swell
West to southwesterly 5 metres.
Weather
Mostly clear.
Weather Situation
A high pressure ridge will begin to develop across the south then more broadly across the state over the weekend. A series of high pressure centres will move south of the Bight before a low pressure trough moves west of the state late on Tuesday. This trough will be pushed northwards along the WA border as new high pressure system develops south of the Bight on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

January Temperature

Mount Gambier Airport (33km)

  • Lowest 1 January, 2026

    6.9 °C

  • Average January

    19.1 °C

  • Highest 7 January, 2026

    41.6 °C

Climate (2021–Present)

Mount Gambier Airport (33km)

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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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