Riddoch Bay Weather Forecast

    • 10
    • 15

    Shower or two

    • 8
    • 16

    Partly cloudy

    • 6
    • 18

    Partly cloudy

    • 12
    • 27

    Partly cloudy

    • 15
    • 20

    Showers

    • 10
    • 20

    Showers

    • 10
    • 15

    Shower or two

Today 26 Sep Mount Gambier

Cloudy. High chance of showers, most likely in the morning. Light winds becoming southerly 15 to 25 km/h in the morning then tending southeasterly 20 to 30 km/h in the middle of the day.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 10 to 15 knots turning southeasterly 15 to 25 knots during the morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy. 50% chance of showers. The chance of a thunderstorm north of Beachport this morning.
Weather Situation
A trough extends over central Australia. A strong high pressure system extends a ridge across southern SA this weekend and pushes the trough into northern SA. The high moves into the Tasman Sea early next week, with the trough shifting west towards the WA border.
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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

    11.8 °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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