Riddoch Bay Weather Forecast

    • 11
    • 15

    Rain easing

    • 9
    • 16

    Shower or two

    • 7
    • 17

    Possible shower

    • 8
    • 18

    Cloudy

    • 9
    • 19

    Partly cloudy

    • 10
    • 22

    Possible shower

    • 13
    • 21

    Possible shower

Today 25 Oct Mount Gambier

Cloudy. Very high chance of rain, becoming less likely this afternoon. Winds southwesterly 20 to 30 km/h becoming light in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
South to southwesterly 15 to 20 knots tending west to southwesterly in the late morning and afternoon. Winds reaching up to 25 knots south of Port MacDonnell in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres south of Beachport during the morning.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 70% chance of showers, with possible small hail south of Beachport late this afternoon and evening.
Weather Situation
A trough and cold front continue moving across the far northeast on Sunday. A ridge of high pressure will move into the west late Sunday and persist over much of southern SA through to mid-next week, as the associated high slowly drifts east across waters to the south. A trough and low pressure system may then develop near the WA border from late Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

October Temperature

Mount Gambier Airport (33 km)

  • Lowest 7 October, 2026

    2.8 °C
  • Average October

    15 °C
  • Highest 22 October, 2026

    32.8 °C

Climate (2021–2026)

Mount Gambier Airport (33 km)

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  • Average Low 2021–2026

    8.9 °C
  • Average 2021–2026

    13.8 °C
  • Average High 2021–2026

    20.1 °C
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