Riddoch Bay Weather Forecast

    • 9
    • 14

    Cloudy

    • 1
    • 15

    Morning frost. Partly cloudy

    • 9
    • 13

    Cloudy

    • 8
    • 15

    Mostly sunny

    • 5
    • 17

    Mostly sunny

    • 8
    • 21

    Mostly sunny

    • 12
    • 22

    Shower or two

Today 7 Sep Mount Gambier

Cloudy. Winds southerly 15 to 25 km/h becoming light in the late afternoon.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 10 to 15 knots, reaching up to 20 knots south of Beachport in the late morning. Winds turning east to southeasterly below 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
The tail end of a cold front will move across southern coasts early Monday then a high pressure system centred southwest of WA will extend a ridge across the south of SA. The main high centre will move to the east of SA late Thursday and Friday. A trough over the interior of WA will remain stationary for most of the week.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

September Temperature

Mount Gambier Airport (33km)

  • Lowest 1 September, 2026

    6.9 °C
  • Average September

    12.1 °C
  • Highest 1 September, 2026

    18.3 °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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