Riddoch Bay Weather Forecast

    • 4
    • 20

    Mostly clear

    • 10
    • 21

    Shower or two

    • 12
    • 18

    Showers easing

    • 10
    • 15

    Showers

    • 10
    • 16

    Partly cloudy

    • 9
    • 23

    Mostly sunny

    • 13
    • 25

    Showers increasing

Today 23 Sep Mount Gambier

Mostly clear. Light winds.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
East to northeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system centred over the Tasman Sea extends a ridge westwards over central and eastern SA and a low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of the week and over the weekend and the ridge will move away to the east. A weakening cold front will slip across southern coasts late Thursday and early Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

September Temperature

Mount Gambier Airport (33km)

  • Lowest 22 September, 2026

    -0.3 °C

  • Average September

    11.4 °C

  • Highest 19 September, 2026

    25.8 °C

Climate (2021–2026)

Mount Gambier Airport (33km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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